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APPENDIX A
INTERACTION OF X-RAYS WITH MATTER
Tables A.l and A.2 present data on the X-ray interaction properties of materials commonly used in detector systems. We have categorized these materials as proportional counter fill gases (cf. Section 2.3.2), alkali-halide scintillation crystals (cf. Section 2.3.5), p-i-n semiconductor crystals (cf. Section 2.3.6), common detector window materials (including the case of observing through some residual atmosphere), and some of the elements used in collimators, filters, or detector structure.
Table A.I gives basic atomic parameters. The atomic number Z is often given only for the heaviest element in a compound. The density of gases is taken at I atmosphere pressure and O°C. For all materials the energy of the K-shell EK is listed under Es in column 4. For the heavier elements the three L-shell energies are listed in the next line of the same column. In column 5, the first line for each material gives the Kex, X-ray energies, and a second line gives Lex, L/3, Ly energies. In some cases, a single entry represents an average energy. The greek letter designations are themselves averages over 2 or more X-rays which cannot be resolved by non-dispersive techniques. Roughly speaking, when a radiative transition takes place to the K-shell the branching ratio is 80% Kex and 20% K/3, and to the L-shell the ratios are 54% Lex, 43% L/3, and 3% Lex (SE 58). The fluorescent yield Ws of a given shell represents the probability that an electron vacancy in the shell is filled by a radiative transition from a higher shell. The values of Ws in column 6 are taken from SE 58, and we leave a blank where the yield is less than 1%. The interaction fraction ~s for a given shell is the conditional probability that photoelectric absorption is by an electron in that shell (of the given element) if a photoelectric interaction takes place. Of course, the X-ray must have an energy ~Es' Numbers listed for ~L also assume the energy is less than EK • The values given in column 7 are determined by the discontinuity in the absorption coefficient at the given edge:
~s = /ls+ /(/ls+ + /ls-),
where /l + or /l- is the photoelectric absorption coefficient evaluated at Es+ or E;, respectively. Column 8 gives the approximate energy at which the photoelectric cross section, which dominates at low energy, falls below the Compton scattering cross section, which dominates up to several MeV energy.
Table A-2 gives mass absorption coefficients for photoelectric and Compton scattering interactions, separately. The purpose is to provide a useful guide for experimental design or general evaluation of results; however, we do not attempt an accuracy consistent with detailed computer analysis of spectral features. Tabulated coefficients (WG 57, SE 58, CRC 66, HB 70) were plotted on a log-log scale, and straight lines fiton each side of an absorption edge Es. In many cases the original tabulared values were calculated or empirically fit, rather than representing direct measurements
R. Giacconi and H. Gursky (eds.). X-Ray Astronomy. 389-394. All Rights Reserved. Copyright © 1974 by D. Reidel Publishing Company. Dordrecht-Holland.
w
'D
0
TA
BL
E A
.l
Pro
pert
ies
of
mat
eria
ls u
sed
in X
-ray
det
ecto
r sy
stem
s
Ato
mic
D
ensi
ty (
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P)
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ll e
nerg
y X
-ray
lin
es
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ores
cenc
e In
tera
ctio
n P
hoto
elec
tric
equ
als
num
ber
Q(g
m c
m-3
) E
s(ke
Y)
(keY
) yi
eld
frac
tion
C
ompt
on c
ross
sec
tion
Z
CO
s Os
E
(/lp
=
/lc)
keY
Pro
port
iona
l co
unte
r ga
ses
Met
hane
(C
H4)
6
0.71
3 x
10-3
0.
284
0.27
7 0.
96
20
Ne
10
0.90
1 x
10
-3
0.86
7 0.
849,
0.
01
0.94
38
>
"d
0.
858
"d '"
A
18
1.78
x 1
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3.20
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96
0.10
5 0.
90
72
z 9 0.
285,
0.2
46, 0
.244
:><
Kr
36
3.74
x 1
0-3
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12.6
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0.88
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, 1.
73,
1.67
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04
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54
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4.78
4.
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0.14
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rs
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53
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61
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6 28
.47,
32.3
0 0.
865
0.84
26
0 5.
19,
4.86
, 4.
56
3.93
, 4.
22,
~ 0.
13
4.80
C
SI
55
4.54
35
.97
30.8
1,34
.99
0.88
5 0.
68
300
4.28
, 4.
62,
5.28
0.
15
Si
14
2.33
1.
84
1.74
, 1.
83
0.04
0.
92
53
Ge
32
5.36
11
.10
9.88
,10.
98
0.49
0.
91
145
1.42
, 1.
41,
1.21
1.
19,
1.22
0.
01
---~-
Tabl
e A
.I (
cont
inue
d) A
tom
ic
Den
sity
(S
TP
) Sh
ell
ener
gy
X-r
ay li
nes
Flu
ores
cenc
e In
tera
ctio
n P
hoto
elec
tric
equ
als
num
ber
(!(g
mcm
-3)
Es(
keV
) (k
eV)
yiel
d fr
acti
on
Com
pton
cro
ss s
ecti
on
Z
Ws
Os
E(p
p =
Itc
) ke
Y
Win
dow
s B
e 4
1.82
0.
111
0.10
9 0.
97
14
Myl
ar
8 1.
4 0.
532
0.52
5 0.
65
Z
(ClO
Hs0
4)-
6 0.
284
0.27
7 0.
89
~ F
orm
var
8 1.
2&
0.53
2 0.
525
0.65
>
n
(CSH
70
2)-
6 0.
284
0.27
7 0.
92
g P
olyp
ropy
lene
Z
0
(CH
2)
6 0.
958
0.28
4 0.
277
0.96
22
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j
Air
(1.
3% A
) 18
1.
29 x
10-
3 3.
20
2.96
0.
105
0.54
27
~
23.2
% 0
8
0.53
2 0.
525
~ 75
.5%
N)
7 Q
.400
0.
392
.... ~ C
ollim
ator
s, F
ilter
s :=
Mg
12
1.74
1.
30
1.25
,1.3
0 0.
02
0.93
46
i!:
>
Al
13
2.7
1.56
1.
49,
1.55
0.
03
0.93
50
~
Fe
26
7.87
7.
11
6.40
,7.0
6 0.
31
0.90
13
5 0.
849,
0.72
2,0.
709
Ni
28
8.9
8.33
7.
47,8
.27
0.38
0.
89
140
1.01
,0.8
77,0
.858
C
u
29
8.96
8.
99,
8.04
,8.9
1 0.
40
0.89
14
5 1.
10,0
.954
,0.9
35
a V
aria
ble,
dep
endi
ng o
n th
e de
tail
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repa
rati
on o
f a b
atch
of f
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w
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w
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N
TA
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.2
Mas
s ab
sorp
tion
coe
ffic
ient
s (c
m2
gm--
1 )
Mat
eria
l P
hoto
elec
tric
(/l,
,)
/lp
=
/lc
Com
pton
(/lc
)
0.25
E5
0.5E
s 0.
75E
. E
- s
E+
s 1.
25E
s 2E
s 5
Es
lOE
s 1
keV
1
MeV
C
H4
3950
0 86
00
3400
17
00
4000
0 23
000
7300
63
0 77
0.
20
0.20
0.
065
Ne
2430
0 41
20
1470
68
7 10
950
6400
18
10
142
20
0.19
0.
198
0.06
3 A
60
00
940
300
127
1448
89
0 21
2 15
.2
1.82
0.
14
0.18
1 0.
057
K
840
122
41
17.6
13
6 72
19
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1.48
0.
19
0.11
0.
172
0.05
5 X
e (K
she
ll)
247
37
12.2
5.
3 33
18
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5.0
0.39
0.
059
0.08
4 0.
165
0.05
3 (L
she
ll)
9300
14
30
500
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26
5 28
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8.92
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30.4
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0.
050
0.03
7 0.
171
0.05
8 C
sI (
Cs)
15
32
18
5.
0 0.
42
0.06
2 0.
088
0.16
7 0.
058
~ (I
) 28
0 37
11
.5
5.0
19.8
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11
800
1980
67
0 30
7 36
40
2000
56
5 47
7.
4 0.
17
0.20
0 0.
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z 1:1
Ge
22
215
120
32
2.6
.34
0.13
0.
177
0.06
1 x »
Be
2410
0 10
200
5000
17
9000
62
000
3800
0 33
80
480
0.17
0.
178
0.05
7 M
ylar
(0)
15
900
7800
14
700
8400
24
50
188
22.2
(C
) 75
000
1720
0 76
00
4300
36
000
Fo
rmv
ar (
0)
1520
0 80
00
1510
0 81
00
2300
18
2 21
.2
(C)
7200
0 16
700
6300
31
20
3530
0 P
olyp
ropy
lene
(C
) 44
000
1000
0 37
50
1900
47
000
2620
0 85
00
700
92
0.20
0.
229
0.06
5 A
ir (
A)
6600
92
0 29
0 12
3 14
2 75
17
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0.98
0.
11
0.18
0.
200
0.06
4
Mg
1840
0 29
50
945
440
6000
33
00
920
121
11.8
0.
18
0.19
8 0.
064
AI
1400
0 24
00
810
355
4900
25
80
620
52
6.5
0.16
0.
191
0.06
1 F
e 22
00
342
117
54
465
250
67
5.2
0.82
0.
15
0.18
6 0.
600
Ni
1550
28
2 93
40
.5
338
175
52
4.1
0.87
0.
15
0.19
1 0.
062
Cu
13
30
260
83
37
307
164
47
3.7
0.61
0.
14
0.18
3 0.
062
INTERACTION OF X-RAYS WITH MATTER 393
TABLE A.3
Interstellar absorption
Energy Element Abundance Cross section Distance to unit optical (keY) LOglONH = 12.00 per H atom depth, if nH = 1.0 cm-3
(LogNHe = 10.89, 10-22 cm2 (kiloparsecs) LogNFe = 7.3)
0.100 570 0.0056 0.200 76 0.042 0.284- C 8.6 26 0.124 0.284+ 30 0.11 0.350 16.1 0.20 0.400- N 8.05 10.4 0.31 0.400+ 11.4 0.28 0.500 5.8 0.55 0.532- 0 8.95 4.8 0.67 0.532+ 10.6 0.30 0.600 7.5 0.43 0.700 4.8 0.67 0.800 3.3 0.97 0.867- Ne 8.0 2.61 1.23 0.867+ 3.07 1.05 1.00 2.05 1.57 1.74- Mg 7.4 0.40 8.0 1.74+ 0.43 7.5 2.33- Si 7.5 0.187 17.2 2.33+ 0.213 15.1 2.47- S 7.35 0.188 17.1 2.47+ 0.216 14.9 3.20- A 6.88 0.104 31 3.20+ 0.113 28 4.00 0.060 54 5.00 0.031 104 6.00 0.Q18 180 8.00 0.0076 420
10.00 0.0039 820
Es represents the K-shell energy, except where the L-shell is also given for zenon. Table A.3 presents data (from BR 70) on the absorption properties of the interstellar
medium. For the abundance distribution shown in column 3, the total equivalent photoelectric cross section per H-atom is given in column 4. As in Table A.2, the cross sections interpolate approximately as the energy to a power between - 8/3 and - 3. The heavier elements increasingly account for the cross section at higher energies. The distance in column 5 would be one optical depth if the interstellar density were 1.0 H-atom per cm3 • To find distance for any other density divide values in column 5 by the number per cm3 •
BR 70 CRC66
References
Brown, R. and Gould, R.: 1970, Phys. Rev. Dl, 2242. Handbook of Chemistry and Physics, 48th ed., 1966, Chemical Rubber Publishing Co., Cleveland, E-125.
394
HB70 SE 58
WG57
APPENDIX A
Henke, B. L. and Elgin, R. L.: 1970, Adv. X-Ray Analysis 13,639. Storm, E., Gilbert, E., and Israel, H.: 1958, 'Gamma-Ray Absorption Coefficients for Elements 1 through 100', Los Alamos Scientific Laboratory, LA-2237. White-Grodstein, G.: 1957, 'X-Ray Attenuation Coefficients from 10 keV to 100 MeV', National Bureau of Standards Circular 583.
APPENDIX B
UNITS AND CONVERSION FACTORS
Astronomical Constants
One year (1900) Acceleration due to gravity at Earth's
surface Acceleration due to Sun's gravity at
Earth's orbit 1 Astronomical Unit 1 parsec 1 light year Solar Mass Solar radius Solar luminosity Galactic Pole (1950) Galactic Center (1950)
Numerical Constants
1 Radian
e 1 steradian 411: steradian
Physical Constants
Velocity of light Gravitational constant Planck's constant Electronic charge Electron mass
Proton mass
Larmour Frequency of Electron
1 yr=3.1558 x 107 S.
g=980.665 cm S-2
g=0.5930 cm S-2
1 AU = 1.495985 X 1013 cm 1 p.c. = 3.0856 x 1018 cm 1 l.y. =9.4605 X 1017 cm Mo = 1.989 X 1033 g Ro =6.9598 X 1010 cm 2! 0 =3.90 X 1033 erg S-l
12h 49.0m, + 27°24' 17h 42.5m, - 28°56'
=57~29578
=3.437747 x 103 arc min = 2.062648 x 105 arc sec = 1.745329 x 10- 2 radians =2.908882 x 10- 4
=4.848137 X 10- 6
=2.7182818 = 3.282806 x 103 deg2
= 4.125296 x 104 deg2
c = 2.9979250 cm s - 1
G=6.6732 x 10- 8 dyne cm2 gm- 2
h=6.6252x 10- 27 erg s e=4.80325 x 10- 10 e.s.u. me=9.109558 x 10- 28 g mec2 =0.511O MeV mp =1.67248 x 10- 24 g mpc2 =938.26 MeV w=2.800x 106 H Hz G- 1
R. Giacconi and H. Gursky (eds.) , X-Ray Astronomy. 395-396. All Rights Reserved. Copyright © 1974 by D. Reidel Publishing Company, Dordrecht-Holland.
396
Stefan-Boltzmann constant First radiation constant Boltzmann constant Avogadro's number Rydberg constant (H) Fine structure constant Radius of first Bohr orbit Classical radius of the electron Thomson cross section Flux unit Wavelength of 1 keY photon Frequency of 1 keY photon Energy of 1 ke V Temperature equivalent to 1 eV
APPENDIX B
0"=5.6728 X 10- 5 erg cm- 2 K- 4 s-1 a=7.5641 x 10- 15 erg cm- 3 K- 4
k= 1.380622 X 10- 16 erg K- 1
No = 6.0232 X 1023
RH = 1.096776 X 103 cm- 1
IX= 1/137.04 lXo =0.529172 x 10- 8 cm e2/m;=2.81785 x 10- 13 cm 8ne4 /3m e
2c4 = 0.6652453 x 10- 24 cm2
F.U.=1O- 26 watt m- 2 Hz- 1
A= 1.2395 X 10- 7 cm v =2.4182 x 1017 Hz 1 keY = 1.6022 x 10- 9 erg k- 1 = 1.160485 X 103 K
APPENDIX C
CATALOG OF X-RAY SOURCES
The data presented in the 3U (GR 74) catalog are contained in Table II and are in essentially the same format as the 2U (GR 72) catalog. In Table I we present an abridged listing of the 3U catalog giving source name, location, error box area, intensity and reference to the 2U listing. If the reader is interested in the criteria for inclusion of sources in the Catalog, or for the resolution of crowded regions, he should refer to the 3U Catalog, which has been published as a supplement to the Astrophysical Journal, from which the present tables have been abstracted. We have updated the comments - counterpart listings for each source reflecting the new location and error boxes. For new sources standard lists of interesting objects have been checked for positional coincidence. As a result of our experience with the 2U catalog, we have deleted references to the Zwicky catalogs of Galaxies and Clusters of Galaxies. This is due to the difficulty we have found in defining uniform objective criteria for having possible counterparts from these catalogs. For X-ray sources which have been studied
Fig. 1. The 161 sources seen by Uhuru. The map is an equal area projection in galactic coordinates.
in more detail, we have added an annotation (Table III) following Table II which summarizes the observational results.
The catalog lists 161 sources giving locations with 90% confidence error boxes, 2-6 keY intensities, and comments on peculiar properties, previous X-ray observa-
R. Giacconi and H. Gursky (eds.) , X-Ray Astronomy, 397-442. All Rights Reserved. Copyright © 1974 by D. Reidel Publishing Company, Dordrecht-Holland.
398 APPENDIX C
tions, and possible counterparts. In Figure 1 a map of the source locations in galactic coordinates is shown.
The sources which comprise this catalog are listed in Table II with the following information:
The source designation is given as the right ascension and declination (1950 epoch) of the location of the maximum of the joint probability distribution truncated to minutes of right ascension and degrees of declination. The error box corners at the 90% confidence level, as discussed in the 2U catalog, and the error box area are also listed, as is the most probable source location. Locations are given in equatorial coordinates in both time and arc and decimal degree notation. In addition, the most probable location is also given in galactic coordinates.
For each source an intensity is listed which is the count rate measured with Uhuru from 2-6 keY corrected for elevation in the collimator fields of view. For sources which are not observed to vary, the intensity given is the weighted average of individual sightings. For variable sources, we list the maximum observed intensity and the range of variability. In the case of non-varying sources, the uncertainty in intensity is also given. This value is derived from the individual uncertainties in each sighting as determined from the minimum X2 fit of the collimator response to the data. These uncertainties approximately reflect the statistical significance of the sources.
In addition to statistical uncertainties, the source intensities given in this catalog are subject to systematic uncertainties due to the elevation corrections which depend on source location. In general sources with poor location precision are subject to large systematic uncertainties in intensity. Unless otherwise indicated by an asterisk, the intensities listed are corrected for elevation using the most probable source location. Sources with identified counterparts have intensities corrected for the known location of the counterpart.
The listed intensities are in terms of Uhuru count rates from 2 to 6 keY. For typical spectral shapes and using an effective area for the Uhuru detectors of 840 cm2
the conversion of these intensities to energy flux is 1.7 x 10 -11 erg cm - 2 S -1 per cts s -1 .
As discussed in 2U catalog, we expect no more than a ± 30% uncertainty in this value due to the spectral shape, and an additional ± 10% uncertainty which is due to uncertainties in the detector effective area.
The comments given for the sources consist of general remarks which point out peculiar X-ray properties such as a spectrum or time scales of variability and a 'counterparts' comment. The counterparts comment results from searching standard compilations of interesting objects which are listed following the table. Counterparts followed by a question mark(?) indicate either tentative identification or that the object is in or near to the error region of the X-ray source. Counterparts with no question mark indicate more certain identification based upon particular properties of either the X-ray source or the counterpart object. We also have searched some of the previous X-ray literature and under the 'previous X-ray' comment we list back references for the X-ray sources. This is not intended to be a complete literatur survey but rather an aid in correlating the Uhuru results with other observationse
CATALOG OF X-RAY SOURCES 399
Again, comments with a question mark indicate possible correspondence. The numbers in parenthesis following a comment refer to the list of references which follows the table.
For several sources which have been studied in detail we include a more detailed comment than allowed for in the catalog format. The table of annotations (Table III) follows the catalog. Sources fOI which there are annotations are indicated by a dagger (t) in the 'previous X-ray' comment.
GR 74
GR 72
References
Giacconi, R., Murray, S., Gursky, H., Kellogg, E., Schreier, E., Matilsky, T., Koch, D., and Tananbaum, H.: 1974, Astrophys. J. 5uppl. 237, 27. Giacconi, R., Murray, S., Gursky, H., Kellogg, E., Schreier, E., and Tananbaum, H.: 1972, Astrophys. J. 178, No.2, part 1.
400 APPENDIX C
TABLE I
Source Location of maximum probability density Area of Intensity Previous name R.A. (1950) Dec. (1950) I b error box avg/max Range name (1) (2A) (2B) (2C) (2D) (3) (4A) (4B) (5)
3U 0001 - 31 0 111 -31 3 0 10.852 -78.958 5.100 3.2±0.4 2U 2358 -29 3UOO12-05 01235 - 51629 99.991 -66.239 0.230 4.9±2.0 3U 0021 +42 02147 +42 0 0 117.616 -20.316 15.000 1.9 ± .3* 2U0022+42 3U 0022+63 02238 +6354 0 120.105 1.448 0.007 9.5 ±0.5* 2U 0022+63 3U0026-09 026 0 - 942 0 104.878 -71.488 1.200 4.3 ± 1.1
3U0032+24 03247 +2412 0 118.295 - 38.252 18.000 6.8 ± 1.4 2U 0033 +24 3U 0042+32 04250 + 32 46 48 121.508 -29.802 0.140 7.0±0.5 2U0043 +32 3U 0055 -79 05526 -794113 302.635 - 37.708 0.180 2.2±0.6 3U0057 -23 05741 -235529 152.908 - 86.010 1.200 2.1 ±0.4 3U0115 -73 1 15 19 -734141 300.455 -43.575 0.003 28 ;,,9 2U 0115 -73
3U 0115 + 63 11528 +633336 125.943 1.111 0.004 70 7 2U0114+63 3U0138-01 1 38 11 - 12023 149.415 - 61.397 0.200 6.2± 1.7 3U 0143 +61 14316 + 611947 129.404 - 0.589 0.027 7.2±0.5 2U 0143 +61 3U 0151 + 36 1 51 23 + 36 45 0 136.664 -24.193 0.940 2.4±0.4 3U0227 +43 22711 +4342 0 141.156 -15.420 13.000 4.2±0.6 2U0227 +43
3U0254+ 13 25435 + 1315 0 163.882 - 39.208 0.220 3.4 ±0.3 2U 0258 + 13 3U0258+60 25835 + 60 4311 138.202 1.994 0.230 2.9 ±0.2 3U 0302-47 3 233 -4718 0 259.398 - 57.236 2.000 3.3 ± 0.8 3U 0305 + 53 3 555 +53 111 142.834 - 4.239 0.130 2.8 ±0.8 3U 0316 +41 31634 +412110 150.578 -13.234 0.012 47.4 ± 0.6 2U 0316+41
3U0313+55 31811 +55 9 0 143.267 - 1.484 0.980 4.9±0.7 3U0328 -52 323 0 - 52 2847 264.447 -51.327 18.000 1.7±0.4 2U0328-52 3U 0352+ 30 35221 + 305435 163.093 -17.113 0.006 20.2±0.5 2U0352+30 3U0400-59 4 023 -59 0 0 270.611 -- 44.533 9.000 3.8 ±0.6 3U 0405 + 10 4 511 + 10 224 181.723 - 29.520 0.520 3.4±0.4 2U0410+10
3U0426-63 42647 -6333 0 274.794 - 39.937 0.870 2.6 ± 0.4 2U 0426 - 63 3U 0430 + 37 43047 +371423 164.350 - 7.028 1.900 6.0±0.9 3U 0431-10 431 35 -10 0 0 205.880 -34.977 4.400 3.0±0.3 2U0426-10 3U0440+06 440 2 + 65924 190.269 -24.462 0.500 5.6±0.9 2U0440+07 3U 0446+44 44638 +445735 160.527 0.314 0.053 6.2±0.5 2U 0447 +44
3U 0449 +66 44931 +665024 143.620 14.431 0.270 8.1 ±2.3 2U0449 +66 3U 0510-44 51038 -443935 250.025 - 35.892 18.000 2.0±0.5 2U0544-39 3U 0521 -72 521 35 -72 111 283.103 - 32.665 0.014 14.9 ± 1.0 2U 0521 72 3U0527 -05 52735 - 551 0 208.787 - 20.735 1.400 4.2±0.5 2U0525 -06 3U 0530 - 37 53019 -37 0 0 241.633 - 31.039 1.600 2.5 ±0.3 2U 0515 - 34
3U 0531 +21 53127 +215941 184.538 - 5.790 0.003 947 ±21 * 2U 0531 +22 3U 0532 -66 53719 - 66 3711 276.596 -32.555 0.190 9.4 ± 2.1 2U0532-66 3U 0535 -64 53921 -64 447 273.537 -32.007 0.014 20.7 ± 1.0 2U0539-64 3U 0540-65 54057 - 6948 0 280.232 -31.438 0.022 19.3 ± 1.3 2U0540-69 3U 0545 - 32 54526 - 3212 0 237.242 -26.803 1.800 3.2 ±0.4 2U0525 -38
3U 0614 + 09 61414 + 91011 200.849 - 3.387 0.005 60 6 2U 0613 +09 3U0620+23 62023 +2324 0 189.014 4.666 6.100 5.0±0.5 2U 0601 +21 3U0624-55 624 0 - 55 447 263.864 -25.637 0.250 3.4 ± 0.4 2U 0628 -54
CATALOG OF X-RAY SOURCES 401
Table I (contintted)
(1) (2A) (2B) (2C) (2D) (3) (4A) (4B) (5)
3U0657-35 65735 -35 6 0 245.688 - 13.731 2.200 3.0±0.9 3U0705-55 7 535 -55 9 0 265.680 -19.935 1.000 3.2±0.4
3U0750-49 75023 -4927 0 263.250 -11.355 0.790 9.4±2.3 3U0757-26 75748 -2624 0 244.124 1.750 0.900 3.0±0.5 2U0757 -26 3U0804-53 8 447 -53 3 0 267.577 -11.213 1.000 3.6±0.5 2U0757 -53 3U0821-42 82133 -423935 260.370 - 3.169 0.022 7.5 ±0.6 2U0821-42 3U0833 -45 83335 -45 3 0 263.584 - 2.823 0.052 9.1 ± 1.0 2U0832-45 3U09OO-40 9 015 -402135 263.065 3.933 0.001 100 10 2U0900-40 3U090l-09 9 135 - 924 0 238.460 23.816 2.600 4.4±0.8
3U0917+63 91744 +6327 0 150.995 40.657 0.190 4.0±0.5 3U0918 -55 91845 - 55 057 275.852 - 3.877 0.016 6.3 ±0.3 2U 1822+00 3U0943 +71 94335 +711535 140.469 39.248 5.300 4.0±0.5 3U0946-30 94614 -30450 262.896 17.319 0.130 5.6±0.4 2U 1005-32 3U 1022 - 55 102228 -552923 283.237 1.400 0.081 10.4±0.7 2U 1022-55
3U 1044 - 30 10 44 0 -3024 0 273.429 24.947 11.000 2.2±0.8 3U 1109 - 59 11 9 31 +5942 0 143.892 53.487 6.300 2.4±0.4 3U 1118 - 60 11 1855 -6019 4 292.067 0.361 0.001 160 ~20 2U1119-6O 3U 1134 - 61 11 3426 -6136 0 294.256 - 0.269 0.031 8.7±0.8 2U 1134-61 3U 1144+ 19 1144 4 + 19 4311 236.861 73.280 0.130 3.6±0.3 2U 1144+19
3U 1144 -74 11 4447 -744947 298.746 -12.761 0.150 4.3 ±0.8 3U 1145 - 61 11 45 31 -615324 295.597 - 0.204 0.020 72 5 2U 1146-61 3U 1207+3912 733 + 39 4611 155.142 74.941 0.100 5.0±0.8 2U 1207+39 3U 1210 - 64 12 10 21 -64 38 24 298.875 - 2.349 0.020 6.0±0.6 2U 1211-64 3U 1223 - 62 122350 -623336 300.106 - 0.101 0.004 32 3 2U 1223 -62
3U 1224 + 02 122455 + 21835 289.039 64.257 0.140 4.2±0.5* 2U 1224+02 3U 1228 + 12 1223 4 + 1242 0 283.555 74.507 0.021 21.7 ±0.3 2U 1228+12 3U 1231 + 07 1231 35 + 7 823 250.693 69.324 1.200 6.7 ± 1.4 2U 1231 +07 3U 1237 - 07 12 37 45 - 712 0 298.100 55.293 2.800 1.3 ±0.4 3U 1247 - 41 1247 19 -41 223 302.650 21.559 0.051 6.2±0.3 2U 1247-41
3U 1252 - 28 12 5228 -285735 303.914 33.634 0.130 4.5 ±0.3 2U 1253-28 3U 1254 - 69 12 5421 -69 III 303.483 - 6.425 0.001 25.5 ±0.6 2U 1254-69 3U 1257 + 28 12 57 28 +281123 56.334 87.964 0.011 14.8 ±0.3 2U 1257+28 3U 1258 - 61 1258 2 -6120 9 304.085 1.245 0.002 47 5 2U 1258-61 3U 1320 - 61 132041 -614329 306.745 0.645 0.140 5.2± 1.6
3U 1322 - 42 13 22 11 -424723 309.448 19.395 0.013 8.0±0.3 2U 1322-42 3U 1349 + 24 13 49 11 +2427 0 24.081 76.156 12.000 3.8±0.9 2U 1348+24 3U 1410 - 03 14 10 55 - 3 335 339.170 53.702 0.140 3.5 ±0.5 2U 1420-02 3U 1439 - 39 1439 2 -39 148 325.271 18.777 4.000 3.3±0.4 2U 1440-39 3U 1443+431443 2 +43 223 74.660 62.164 0.150 3.0 0.7 2U 1443+43
3U 1510-591510 7 -59 0 0 320.310 - 1.214 0.014 6.4±0.6 2U 1509-58 3U 1516 - 56 151643 -5659 2 322.111 0.046 0.001 720 ~20 2U 1516-56 3U 1538 - 52 15 38 14 -521047 327.398 2.238 0.010 11.3 ±0.7 2U 1536-52 3U 1543 -621543 0 -622435 321.708 6.293 0.003 36 3 2U 1542-62 3U 1543 -47 154350 -473336 330.927 5.362 0.001 2000 ~ 100 2U 1543-47
402 APPENDIX C
Table I (continued)
(1) (2A) (2B) (2C) (2D) (3) (4A) (4B) (5)
3U 1544 -75 1544 0 -7545 0 313.239 -16.749 0.075 3.1 ±0.3 2U 1544-75 3U 1551 + 15 1551 35 + 15 54 0 27.505 46.299 15.000 2.1 ±0.5 3U 1555 + 27 155529 ± 2712 0 43.918 48.824 0.340 5.1 ::'.:0.7 3U 1556 - 60 155654 -603747 324.132 - 5.967 0.010 17.0±0.9 2U 1556-60 3U 1617 -15 16 17 6 -153213 359.087 23.767 0.002 17.000* 2.5 2U 1617 -15
3U 1623 + 05 1623 11 + 524 0 19.744 34.641 12.000 2.6 ±0.4 2U 1642+04 3U 1624 - 49 162419 -49 524 334.915 - 0.267 0.002 50 5 2U 1624-49 3U 1626 - 67 162641 - 672143 321.745 -13.057 0.008 10.2 ±0.4 2U 1626-67 3U 1630 - 47 163010 -471622 336.903 0.282 0.001 150 3 2U 1630-47
3U 1632 - 64 163247 -64 824 324.632 - 11.379 0.180 11.0 ± 1.1 2U 1639 -62 3U 1636 - 53 163654 - 5339 3 332.914 - 4.811 0.001 261 ±3 2U 1639 -62 3U 1639 + 40 163921 +401355 63.860 41.339 5.300 4.0±0.6 3 3U1647-45 1642 6 -453129 339.578 - 0.075 0.001 381 2U 1641 - 45 3U1645+21164514 +213223 40.560 36.409 1.100 6.1 ± 1.8
3U 1653 + 35 165311 + 3536 0 58.258 38.120 0.740 100 ~6 2U 1705 + 34 3U1658-48165857 -484337 338.925 - 4.322 0.001 344 3 3U 1700-3717 026 -374611 347.745 2.193 0.009 102 ~3 2U 1700-37 3U 1702 - 36 17 2 19 - 36 21 35 349.093 2.756 0.001 715 2 2U 1702-36 3U1702-4217219 -425847 343.837 - 1.272 0.016 34.0±2.6 2U 1704-42
3U 1704-3217 431 - 32 635 352.763 4.960 0.058 14.0 ± 1.2 2U 701 -31 3 U 1705 - 44 17 523 -44 3 0 343.322 - 2.363 0.001 280 3 2U 1705 -44 3U 1706+3217 623 +32 6 0 54.644 34.758 9.800 4.1 ±0.6 3U 1706+7817 647 +783223 110.823 31.810 0.054 3.2 ±0.3 2U 1706+ 78 3U 1709 - 23 17 926 -232135 0.534 9.240 0.007 39 5 2U 1705 -22
3U 1714-33 171455 - 3918 0 348.207 0.992 0.083 11.6±2.2 2U 1718 -39 3U 1727 - 33 172721 -3342 0 354.235 0.129 0.008 65 10 2UI726-33 3 U 1728 - 24 17 28 49 -2443 1 1.914 4.817 0.003 60.3 ±2.4 2U 1728 -24 3U 1728 -16 17 28 49 -165652 8.493 9.027 0.001 260 1.7 2UI728-16 3U 1735 - 44 17 35 II -44 2512 346.044 6.974 0.002 210±6 2U 1658 -46
3U 1735 -28173523 -2827 0 359.573 1.556 0.040 565 ~1O 2U 1735-28 3U1736+43173623 +43 3 0 68.826 31.081 1.800 10.8 ± 2.4 2U 1735 +43 3U 1743 -29174335 -29 747 359.951 0.327 0.092 40±5 2U 1743 -29 3U 1744-26174444 -263343 2.272 0.800 0.800 460 3 2U1744-26 3U 1746 - 37 174647 - 37 035 353.554 4.989 0.Q18 30.7 ± 1.8
3U 1755 - 33 17 55 33 - 3348 0 357.240 4.907 0.014 47 3 2U 1757 -33 3U1758-2517587 -25 447 5.084 1.032 0.001 1127 2 2U 1757 -25 3U 1758 - 20 17 58 34 -203213 9.071 1.147 0.001 595 2 2U 1758-20 3U 1809+5018 923 +501947 78.182 26.851 0.390 5.1 ±0.3 2U 1808+50 3U 1811-17 181142 -1711 6 13.516 0.082 0.001 345 1.5 2U 1811 -17
3U 1812 -12 18 12 4 -12 635 18.009 2.447 0.037 12.1 ± 1.2 2U 1813 -12 3U 1813 -14 18 13 9 -14 335 16.424 1.280 0.001 588 1.5 2U 1813 -14 3U 1820 - 30 182025 - 30 2320 2.784 7.907 0.001 250 1.5 2U 1820-30 3U 1822 - 37 182214 - 3711 23 356.787 -11.290 0.023 16.9 ± 1.4 2U 1822 - 37 3U 1822 - 00 182251 - 0 2 9 29.951 5.782 0.009 36.6 ± 1.7 2U 1822+00
CATALOG OF X-RAY SOURCES 403
Table I (continued)
(1) (2A) (2B) (2C) (2D) (3) (4A) (4B) (5)
3U 1825 + 81 182535 +8118 0 113.193 27.943 0.690 2.7 ±0.3 2U 1828 + 81 3U1832-2318320 -231311 10.406 - 6.948 0.096 6.9±0.9 3U 1832-051832 9 - 518 0 26.357 1.283 0.180 6.1 ± 1.0 2U 1833 -05 3U 1837 + 04 183719 + 45924 36.099 4.881 0.001 270 2 2U 1836+05 3U 1843 + 67 184326 +6730 0 97.880 25.684 2.100 3.5 ±0.4 2U 1843 +67
3U 1849 -771849 0 -77 6 0 317.465 -26.653 0.150 3.0±0.5 2U 1849-77 3U 1901 +0319 140 + 3 111 37.141 - 1.420 0.034 87 4 2U 1907 +02 3U 1904 + 67 19 447 +67 0 0 97.833 23.561 1.100 5±1 2U 2012+62 3U1906+0919 623 + 94311 43.621 0.649 0.220 7.6 ± 1.4 3U1908+00 19 8 7 + 03111 35.666 - 4.002 0.002 199 3 2U 1908+00
3U 1912 + 07 19 1235 + 742 0 42.550 - 1.649 0.770 21.5 ± 1.0 3U 1915 - 05 191535 51647 31.342 - 8.321 0.120 23 52 2U 1912-05 3U 1921 + 43 1921 40 +432847 75.509 13.010 0.200 6.3 ±0.6 2U 1926+43 3U 1953 + 31 19 53 55 +315623 68.390 1.885 0.013 63 5 2U 1954+31
3U 1956+651956 0 +65 0 0 97.817 17.996 2.800 4.7 ±0.4 2U 2006 + 59 3U 1956 + 35 19 56 22 +35 336 71.318 3.084 0.001 1175 5 2U 1956+35 3U 1956 + 11 19 56 47 + 11 36 0 51.303 - 9.265 0.047 17.4±0.9 3U 1957 + 40 19 57 11 +40 36 0 76.139 5.845 0.230 5.6 ± 1.6 2U 1957 +40 3U 1959 - 69 19 59 35 -6942 0 325.858 -31.669 0.870 2.8±0.4 2U 1954-68
3U 2030 + 40 203033 +4047 5 79.836 0.710 0.001 194 ;;03 2U 2030 +40 3U 2041 + 75 2041 55 +752512 109.361 19.857 1.200 3.4±0.7 2U 2041 +75 3U 2052 + 47 20 52 23 +475512 87.849 2.090 3.100 6.2 ± 0.5 3U 2128 + 81 21 2847 + 8136 0 116.071 21.838 1.100 1.5 ±0.3 2U 2128 +81 3U 2131 + 11 21 29 57 +47 148 91.596 - 3.106 0.027 11.6 ± 0.5 2U 2130+47
3U 2131 + 11 21 31 11 + 114911 65.549 -28.078 1.400 4.1 ±0.4 2U2134+ 11 3U 2142 + 38 21 42 35 +38 513 87.322 -11.316 0.001 540 ;;0 2.5 2U 2142 + 38 3U 2208 + 54 22 8 35 +542923 101.024 - 1.137 0.100 4.4±0.8 2U2208+54 3U2233 +59 2233 0 +5933 0 106.532 1.359 2.800 4.7 ±0.4 3U 2321 + 58 23 21 12 +583328 111.750 - 2.116 0.001 53.4 ± 1.0 2U2321 +58
3U 2346+262346 7 +2630 0 105.990 -34.020 7.000 7.0 ± 1.2
404 APPENDIX C
TABLE II
Source name Location of maximum Error region for 90 % confidence probability density
1 2 3 4 area Alpha (1950) I Alpha Alpha Alpha Alpha sq. Delta (1950) b Delta Delta Delta Delta deg
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U0001-31 o 112 10.85 01112 235124 235124 01112 5.1000 -31 3 0 -78.96 -3027 0 -3027 0 - 3139 0 - 3139 0
0.30 2.80 357.85 357.85 2.80 -31.05 -30.45 -30.45 -31.65 -31.65
3UOO12-05 01236 99.99 01217 o 936 01029 013 0 0.2300 51630 -66.24 5 636 54012 54612 52548 3.150 3.07 2.40 2.62 3.25 5.275 5.11 5.67 5.77 5.43
3U0021 +42 02148 117.62 1 9 0 02055 1 9 0 02055 15.0000 42 0 0 -20.32 4257 0 4257 0 41 12 0 4112 0 5.45 17.25 5.23 17.25 5.23
42.00 42.95 42.95 41.20 41.20
3U0022+63 02238 120.11 02322 02229 02155 02248 0.0068 6354 0 1.45 635548 635548 6351 36 6351 36 5.66 5.84 5.62 5.48 5.70
63.90 63.93 63.93 63.86 63.86
U 0026 -09 026 0 104.88 03824 014 0 014 0 038 0 1.2000 942 0 -71.49 924 0 948 0 -10 0 0 936 0 6.5 9.6 3.5 3.5 9.5 9.7 9.4 9.8 -10.0 9.6
3U0032+24 03248 118.29 1 1112 03136 028 0 1 1048 18.0000 2412 0 -38.25 24 0 0 2512 0 2312 0 2218 0
8.20 17.8 7.9 7.0 17.7 24.23 24.00 25.20 23.20 22.30
3U 0042+32 04250 121.51 04555 040 0 040 7 046 0 0.1400 324648 -29.30 33 336 3236 0 3230 0 3257 0 10.71 11.48 10.00 10.03 11.50 32.78 33.06 32.60 32.50 32.95
3U0055-79 05527 302.64 1 036 05012 05012 1 036 0.1800 -794113 -37.71 -7930 0 -730 0 -795324 -795324
13.862 15.15 12.55 12.55 15.15 -79.687 -79.50 -79.50 -79.89 -79.89
Intensity ---~----
Average max.obs Of min.obs. maximum (4A) (4B)
3.2±0.4
4.9±2.0
1.9 ±0.3*
9.5 ±0.5*
4.3 ± 1.1
6.8 ± 1.4
7.0±0.5
2.2±0.6
CATALOG OF X-RAY SOURCES
Comments General remarks
Counterparts
(5A)
M31
Tycho's SNR = 3C 10
NGC 195?
Star: 34, and? P< s 0035 + 23 (QSO)? arp 282? NCC 160.169? IC 1559?
Previous X-ray
(5B)
2U2346-32 Il
2U2358 -29
2U 0022+42
CEP xr-l (1) Tycho (2) CEP 1 (3)
2U 0022+ 63
2U0033 +24
2U0043+32
405
Source name
(6)
m 0001- 31
m0012-05
3U0021 +42
3U0022+63
m0026-09
m0032+24
m 0042+ 32
m0055-79
406 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 0057 -23 05742 152.91 058 0 04036 04036 05824 1.2000 -235530 - 86.01 -2345 0 -2442 0 -2457 0 -24 6 0
14.425 14.50 10.15 10.15 14.60 - 23.525 - 23.75 -24.70 -24.95 - 24.10
3U 0115 -73 115 19 300.45 1 1531 11424 1 15 14 11629 0.0033 -734142 -43.58 -734048 -7341 6 -734312 -734312
18.83 18.88 18.60 18.81 19.12 -73.695 -73.680 -73.685 -73.720 -73.720
3U 0115 + 63 11529 125.94 11543 115 2 11514 11555 0.0043 6333 36 1.11 6337 12 63 31 48 6330 0 633574 18.87 18.93 18.76 18.81 18.98 63.58 63.62 63.53 63.50 63.59
3U 0138 -01 13312 149.41 13722 13610 13641 139 0 0.2000 12024 - 61.40 112 14012 14724 12924
24.55 24.34 24.04 24.17 24.75 1.34 1.17 1.67 1.79 1.49
3U 0143 + 61 14317 129.46 14358 14229 14229 14358 0.0266 61 1948 - 0.59 6124 0 6124 0 61 15 0 6115 0 25.82 25.99 25.62 25.62 25.99 61.33 61.40 61.40 61.25 61.25
3U0151+36 1 51 24 136.66 154 0 14624 14912 156 0 0.9400 3645 0 -24.19 373412 36 412 3557 0 3721 0 27.85 28.5 26.6 27.3 29. 36.75 37.57 36.07 35.95 37.35
3U 0227 +43 22712 141.16 3 224 21224 211 36 3 0 13.0000 4342 0 -15.42 4324 0 4442 0 4318 0 42 0 0 36.8 45.6 33.1 32.9 45.0 43.7 43.4 44.7 43.3 42.0
3U 0254+ 13 25436 163.88 25531 25236 25331 25634 0.2200 13 15 0 - 39.21 13 28 48 13 1648 13 224 13 15 0 43.65 43.88 43.15 43.38 44.14 13.25 13.48 13.28 13.04 13.25
3U0258+60 25836 138.20 25748 254 0 25936 3 312 0.2300 6043 12 1.99 605812 61 0 0 6027 0 6027 0 44.65 44.45 43.50 44.90 45.80 60.72 60.97 61.00 60.45 60.45
AA) (4B)
2.1 ±0.4
78 ~9
70 7
6.2 ± 1.7
7.2±0.5
2.4 ± 0.4
4.2±0.6
3.4 ±0.3
2.9±0.2
CATALOG OF X-RAY SOURCES
(SA)
Star: Sanduleak at 160 a= Ih 15m 448.3 t5 = - 73 0 42' 53".6
Cluster: Abell 2621 (5) Markaryan 21
3e 66?
Cluster: Abell 401 (5)
(5B)
sme x-l(4)
t 2U0115 -73
2U 0114 + 63
2U 0143 +61
2U0227 +43
2U 0258 + 13
407
(6)
3U0057 -23
3U0115-73
3U 0115 + 63
3U 0138 -01
3U 0143 + 61
3U 0151 + 36
3U0227 +43
3U 0254+ 13
3U 0258 +60
408 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U0302-47 3 234 259.40 31536 24936 25224 31224 2.00( -4718 0 -57.24 - 4551 0 -481012 -4824 0 -464312
45.64 48.9 42.4 43.1 48.1 47.3 -45.85 -48.17 -48.4 -46.72
3U 0305+53 3 555 142.83 3 614 3 348 3 531 380 0.13( 53 112 - 4.24 531348 525924 524912 53 336 46.48 46.56 45.95 46.38 47.00 53.02 53.23 52.99 52.82 53.06
3U0316+41 31635 150.58 317 0 316 3 316 6 317 6 0.01:; 412111 -13.23 412559 4119 12 411554 412230 49.145 49.252 49.011 49.035 49.277 41.353 41.433 41.320 41.265 41.375
3U 0318 + 55 31812 143.27 31912 313 43 31343 32248 0.98C 55 9 0 - 1.48 56 6 0 542548 5415 0 5555 12 49.55 49.80 48.43 49.28 50.70 55.15 56.10 54.43 54.25 55.92
3U0323-52 328 0 264.45 342 0 312 0 312 0 342 0 18.0OC -522848 -51.33 -5024 0 -5024 0 -5424 0 -5424 0
52.00 55.5 48.0 48.0 55.4 -52.48 -50.4 -50.4 -54.4 -54.4
3U0352+30 35222 163.09 35248 35155 35153 35258 O.OOf 305436 -17.11 305736 305324 305136 305624 58.09 58.20 57.98 57.97 58.24 30.91 30.96 30.89 30.86 30.94
3U0400-59 4024 270.61 41024 34448 35736 416 0 9.000 -59 0 0 -44.53 - 5518 0 -6054 0 -6136 0 -5642 0
60.1 62.6 56.2 59.4 64. -59. -55.3 -60.9 -61.6 -56.7
3U0405+10 4 512 181.72 41024 35924 400 41112 0.520 10 224 -29.52 1024 0 95024 94124 101424 61.30 62.60 59.85 60.00 62.80 10.04 10.40 9.84 9.69 10.24
3U 0426-63 42648 274.79 43024 42131 42353 432 7 0.870 -6333 0 -38.94 -614836 -6457 0 -65 3 0 -62 712
66.70 67.60 65.38 65.97 68.03 -63.55 - 61.81 -64.95 -65.05 - 62.12
(4A) (4B)
3.3 ±0.8
2.8±0.8
47.4±0.6
4.9 ±0.7
1.7±0.4
20.2±0.5
3.8±0.6
3.4±0.4
2.6±0.4
CATALOG OF X-RAY SOURCES
(5A) (5B)
Star: 23 J' Per?
Perseus cluster: Abell 426 per x-I (6)
ic 1933.1954?
Star: X Per? at a = 3h 52m 15".2 0=+30° 54' 01 8
ngc 1533.1536.1543? ngc1546. 1549, 1553? ic 2038?
Cluster: Abell 478?
t 2U0316+41
2U0328-52
2U0352+30
2U0410+10
2U0426-63
409
(6)
3U0302-47
3U 0305 +53
3U0316+41
3U0318+55
3U0328-52
3U0352+30
3U0400-59
3U 0405+ 10
3U0426-63
410 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 0430 + 37 43048 164.35 43848 42048 41624 43848 1.9000 371426 - 7.03 3721 36 373824 3715 0 3651 0 67.7 69.7 65.2 64.1 69.7 37.24 37.36 37.64 37.25 36.85
3U0431-10 43136 205.88 43936 42224 424 0 44048 4.4000 -10 0 0 -34.98 - 842 0 -1030 0 -11 30 0 930 0
67.90 69.9 65.6 66.0 70.2 -10.00 - 8.7 -10.5 -11.5 9.5
3U044O+06 440 2 190.27 44255 43643 43712 44336 0.5000 65924 -24.46 73824 63824 62436 72436
70.01 70.73 69.18 69.30 70.90 6.99 7.64 6.64 6.41 7.41
3U 0446 +44 44638 160.53 44736 44531 44550 448 0 0.0534 44 5736 0.31 45 748 445248 444548 45 168 71.66 71.90 71.38 71.46 72.00 44.96 45.13 44.88 44.78 45.03
3U 0449 + 66 44931 143.62 45212 44536 44555 45448 0.2700 665024 14.43 67 9 0 6648 0 662848 665436 72.38 73.05 71.40 71.48 73.70 66.84 67.15 66.80 66.48 66.91
3U0510-44 51038 250.03 518 0 45448 5 248 52648 18.0000 -443936 -35.89 -4042 0 -4630 0 -4842 0 -43 0 0
77.66 79.5 73.7 75.7 81.7 -44.66 -40.7 -46.5 -48.7 -43.0
3U0521-72 52136 283.10 52141 52014 52114 52238 0.0141 -72 112 -32.66 -715624 ,,·72 3 0 -72 6 0 -72 036
80.40 80.42 80.06 80.31 80.66 -72.02 -71.94 -72.05 -72.10 -72.01
3U0527-05 52736 208.79 54312 52712 52712 54312 1.4000 551 0 -20.73 357 0 542 0 660 415 0
81.90 85.8 81.8 81.8 85.8 5.85 3.95 5.70 6.10 4.25
3U0530-37 < 53019 241.63 53712 52536 52312 53512 1.6000 -37 00 -31.04 -37 6 0 -3624 0 -3654 0 -3742 0
82.58 84.3 81.4 80.8 83.8 -37.00 37.1 -36.4 -36.9 37.7
(4A) (4B)
6.0±0.9
3.0 ±0.3
5.6±0.9
6.2±0.5
8.1 ±2.3
2.0±0.5
14.9 ± 1.0
4.2±0.5
2.5 ±0.3
CATALOG OF X-RAY SOURCES
(5A)
3c 129 (Cluster? (5» 3c 129.1
PIC A = MSH(05-42, 05-431)?
InLMC
M 42 = Orion nebula
(5B)
2U0426-10
2U0440+07
2U0447 +44
2U0449+66
2U0544-39
LMC x-2 (4)
2U0521-72
2U0525 -06
2U 0515 - 34
411
(6)
3U 0430+ 37
3U 0431-10
3U0440+06
3U0446+44
3U0449+66
3U0510-44
3U0521-72
3U 0527 -05
3U 0530-37
412 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U0531 +21 53127 184.54 53133 53115 53125 53142 0.0027 215942 - 5.79 22 116 2159 6 215754 22 0 4 82.864 82.886 82.814 82.854 82.926 21.905 22.021 21.985 21.965 22.001
3U0532-66 53219 276.60 53448 532 0 53024 53248 0.1900 -663712 -32.55 -661612 -661424 -6657 0 -665924
83.08 83.70 83.00 82.60 83.20 -66.62 -66.27 -66.24 -66.95 -66.99
3U0539 -64 53922 273.54 53941 53814 539 2 54024 0.0136 -64 448 -32.01 -64 112 -64 636 -64 9 0 -64 336
84.84 84.92 84.56 84.76 85.10 -64.08 -64.02 -64.11 - 64.15 -64.06
3U0540-69 54058 280.23 54146 54019 54019 54146 0.0224 -6948 0 -31.44 -694236 -694236 -695324 -695324
85.24 85.44 85.80 85.08 85.44 -69.80 -69.71 -69.71 -69.89 -69.89
3U0545 -32 54526 237.24 554 0 53536 53648 55536 1.8000 -3212 0 -26.80 -3124 0 -3236 0 -33 0 0 - 3142 0
36.36 88.5 83.9 84.2 88.9 -32.20 -31.4 -32.6 -33.0 -31.7
3U0614+09 61414 200.85 61426 613 58 614 0 61429 0.0050 91012 - 3.39 91236 91048 9 824 91012
93.56 93.61 93.49 93.50 93.62 9.17 9.21 9.18 9.14 9.17
3U 0620+23 62024 189.01 63024 62512 6 936 61448 6.1000 2324 0 4.87 23 6 0 2430 0 2336 0 2212 0 95.10 97.6 96.3 92.4 93.2 23.40 23.1 24.5 23.6 22.2
3U0624-55 624 0 263.86 62655 62253 62436 62836 0.2500 -55 448 -25.64 -542848 -55 036 -551312 -544048
96.00 96.73 95.72 96.15 97.15 -55.08 -54.48 -55.01 -55.22 -54.68
3U0657-35 65736 245.65 7 224 64624 65424 7 8 0 2.2000 -35 6 0 -13.73 -342512 -352512 -3539 0 -3448 0
104.4 105.6 101.6 103.6 107.0 -35.1 -- 34.42 -35.42 -35.65 -34.8
(4A) (4B)
947±21*
9.4±2.1
20.7 ± 1.0
19.3 ± 1.3
3.2±0.4
60 6
5.0±0.5
3.4±0.4
3.0±0.9
CATALOG OF X-RAY SOURCES
(5A)
Crab nebula Pulsar: np 0531 at (1= 5h 31 m 31 s
0=+21" 58' 55H
InLMC
InLMC
InLMC
IC 443 (SNR) = 3C 157 Pulsar: PSR 0611 + 22?
(5B)
Tau x-I (1) Crab (2) Tau 1 (3) t 2U0531 +22
LMC x-4 (4)
2U0532-66
LMC x-3 (4)
2U0539-64
LMC x-I (4)
2U0540-69
2U0525-38
2U0613 +09
2U0601 +21
2U0628 -54
413
(6)
3U 0531 +21
3U0532-66
3U0539-64
3U0540-69
3U054~-32
3U0614+09
3U 0620 +23
3U0624-55
3U0657-35
414 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U0705-55 7 536 265.68 71248 7 0 0 658 0 71112 1.0000 -55 9 0 -19.93 -5518 0 -5436 0 -55 0 0 -5548 0
106.4 108.2 105.0 104.5 107.8 -55.15 -55.3 -54.6 -55.0 -55.8
3U0750-49 75024 263.25 756 0 74312 74448 75736 0.7900 -4927 0 -11.36 -4830 0 -5018 0 -5030 0 -4836 0
117.6 119.0 115.8 116.2 119.4 -49.45 -48.5 -50.3 -50.5 -48.6
3U0757 -26 75748 244.12 8 312 752 0 75312 8 424 0.9000 -2624 0 1.75 -2530 0 -27 0 0 -2712 0 -2542 0
119.45 120.8 118.0 118.3 121.1 -26.4 -25.5 -27.0 -27.2 -25.7
3U0804-53 8 448 267.58 813 12 75936 756 0 8 936 1.0000 -53 3 0 -11.21 -53 0 0 - 52 36 0 -53 0 0 -5324 0
121.20 123.3 119.9 119.0 122.4 -53.05 -53.0 -52.6 -53.0 -53.4
3U0821-42 82134 260.37 82136 82055 82126 82155 0.0215 -423936 - 3.17 -423148 -424536 -424724 -4236 0
125.39 125.40 125.23 125.36 125.48 -42.66 -42.53 -42.76 -42.79 -42.60
3U0833 -45 83336 263.58 834 2 83231 83314 83441 0.0521 -45 3 0 - 2.82 -445136 -451124 -451424 -44 54 0
128.40 128.51 128.13 128.31 128.67 -45.05 -44.86 -45.19 -45.24 -44.90
3U09OO-40 9 015 263.07 9 020 9 010 9 010 9 020 0.0009 -432136 3.93 -402046 -402046 -402234 -402234
135.064 135.082 135.043 135.043 135.082 -43.360 -40.346 -40.346 -40.376 -40376
3U0901-09 9 136 238.46 912 0 85112 85112 912 0 2.6000 924 0 23.82 - 912 0 912 0 942 0 942 0
135.4 138.0 132.8 132.8 138.0 9.4 9.2 9.2 9.7 9.7
3U0917+63 917 45 150.99 92036 915 6 915 6 92036 0.1900 6327 0 40.66 633636 633636 631738 631738
139.437 140.150 138.775 138.775 140.150 63.45 63.61 63.61 63.294 63.294
CATALOG OF X-RAY SOURCES 415
,(4A) (4B) (5A) (5B) (6)
3.2±OA 3U0705 -55
9A±2.3 Star: V Pup? 3U0750-49
3.0±0.5 3U0757-26
2U0757-26
3.6±0.6 3U0804-53
2U0757-53
7.5 ±0.6 PupA Vel XR-2 (I)? 3U0821-42 Pup A (2)
2U0821-42
9.1 ± 1.0 Vela X Vel XR-l (I)? 3U0833 -45 Pulsar: PSR 0833 - 45 at Vel XR-2 (I)? a= 8h 33m 39" Vela X (2) 3=-45° 00' 19H t
2U0832-45
100 10 Star: HD 7781 at GX263+3 (2) 3U09OO-40 a= 9h oom 13".2 Vel XR-l (I)? 3=-40° 21' 25H .2 VeIl (3)
t 2U09OO-4O
4A±0.8 Cluster: Abell 754 (5) 3U0901-09
4.0±0.5 3U0917+63
416 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U0918 -55 91845 275.85 91855 918 5 91838 91924 0.0161 -55 058 - 3.88 - 54 55 37 -55 134 -55 6 7 - 55 018 139.688 139.73 139.52 139.66 139.85
-55.016 -54.927 -55.026 -55.026 -55.005
3U0943 +71 94336 140.47 10 21 12 93736 92736 103712 5.3000 71 1536 39.25 7036 0 72 6 0 7057 0 69 0 0
145.90 155.3 144.4 141.9 159.3 71.26 70.60 72.10 70.95 69.00
3U0946-30 94614 262.90 94526 94429 947 7 948 2 0.1300 -3045 0 17.32 -303148 - 3039 0 -305848 -305212
146.56 146.36 146.12 146.78 147.01 -30.75 -30.53 -30.65 -30.98 -30.87
3U 1022-55 102229 283.24 1021 53 102053 102258 1024 7 0.0810 -552924 1.40 -551710 -552443 -554124 -553350
155.62 155.47 155.22 155.74 156.03 -55.490 -55.286 -55.412 -55.690 -55.564
3U 1044-30 1044 0 273.43 102712 102512 104048 104824 11.0000 -3024 0 24.95 -2624 0 -2748 0 -3136 0 -29 6 0
161.0 156.8 156.3 160.2 162.1 30.4 -26.4 -27.8 -31.6 -29.1
3U 1109+59 11 931 143.89 111224 105248 11 512 11 2648 6.3000 5942 0 53.49 6057 0 6045 0 5827 0 584124
167.38 168.1 163.2 166.3 171.7 59.7 60.95 60.75 58.45 58.69
3U 1110-60 11 1855 292.07 111853 111847 111858 1119 3 0.0007 - 6019 5 0.36 -601735 -601832 -602035 - 601941 165.730 169.722 169.697 169.740 169.764
-60.318 -60.293 -60.309 -60.343 -60.328
3U 1134-61 11 3426 294.26 11 3529 11 3448 11 33 19 11 3424 0.0312 -6136 0 - 0.27 -614312 -613036 -613224 -614312
173.61 173.87 173.70 173.33 173.60 -61.60 -61.72 -61.51 -61.54 -61.72
3U1144+19 1144 5 236.86 11 43 43 11 4234 11 4226 11 45 36 0.1300 194312 73.28 195548 195212 193036 193524
176.02 175.93 175.64 176.11 176.40 19.72 19.03 19.87 19.51 19.59
(4A) (4B)
6.3 ±0.3
4.0±0.5
5.6±0.4
10.4±0.7
2.2±0.8
2.4±0.4
160 ;;.20
8.7 ±0.8
3.6±0.3
CATALOG OF X-RAY SOURCES
(5A)
Star: k Vel?
M82? Markaryan 120? A 936?
Cluster: Abell 1060 (5)
Arp 296.299? Markaryan 169? ngc 3470, 3610, 3642?
Cluster: Abell 1367 (5) 3C 264 = NGC 3962
(5B)
2U 1005 -32
2U 1022-55
Cen XR-3 (1, 2)? Cen X-3 (7) Cen 3 (3)? t 2Ul119-60
2U 1134-61
2U1144+19
417
(6)
3U 0918 - 55
3U 0943 +71
3U0946-30
3U 1022-55
3U 1044-30
3U 1109+59
3U1118-60
3U 1134-61
3U 1144+19
418 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3D 1144-74 11 4448 298.75 11 43 36 11 41 36 11 46 0 1148 0 0.1500 -744948 -12.76 -742812 -74480 -751236 -745248
176.2 175.9 175.4 176.5 177.0 -74.83 -74.47 -74.80 -75.21 -74.88
3U 1145 -61 11 4531 295.60 11 46 19 11 45 53 11 4443 11 45 14 0.0197 -615324 - 0.20 - 613636 -6139 0 - 621236 -62 6 0
176.38 176.58 176.47 176.18 176.31 -61.89 - 61.61 - 61.65 -62.21 -62.10
3U 1207 +39 12 734 155.14 12 919 12 919 12 550 12 919 0.1000 394612 74.94 395024 395024 394124 394124
181.89 182.33 181.46 181.46 182.33 39.77 39.84 39.84 39.69 39.69
3U 1210-64 121022 298.88 121050 12 953 12 953 121050 0.0195 - 64 38 24 - 2.35 -6433 0 -6433 0 -644424 -644424
182.59 182.71 182.47 182.47 182.71 -64.64 -64.55 -64.55 -64.74 -64.74
3U 1223 -62 12 2350 300.11 122346 122336 122355 1224 5 0.0040 - 623336 - 0.10 -622848 - 623224 -623824 -623524 195.96 195.94 185.90 185.98 186.02
-62.56 -62.48 -62.54 -62.64 -62.59
3D 1224+02 122455 289.04 122553 122243 1224 0 1227 2 0.1400 21836 64.26 22624 21912 21124 218 0
186.23 186.47 185.68 186.00 186.76 2.31 2.44 2.32 2.19 2.30
3U 1228 + 12 1228 5 283.56 122834 122736 122736 122834 0.0211 1242 0 74.51 1245 0 1245 0 123936 123936
187.02 187.14 186.90 186.90 187.14 12.70 12.75 12.75 12.66 12.66
3D 1231 +07 1231 36 290.69 122448 122248 123848 123824 1.2000 7 824 69.32 754 0 742 0 624 0 642 0
187.90 186.2 185.7 189.7 189.6 7.14 7.9 7.7 6.4 6.7
3D 1237 -07 123746 298.10 1245 0 121848 122448 124524 2.8000 - 712 0 55.29 - 630 0 - 8 6 0 - 812 0 - 7 0 0
189.44 191.25 184.7 186.2 191.35 - 7.2 - 6.5 - 8.1 - 8.2 - 7.
CATALOG OF X-RAY SOURCES 419
(4A) (4B) (5A) (5B) (6)
4.3 ±0.8 3U 1144-74
72 5 3U 1145 - 61
2U1146-61
5.0±0.8 NGC 4151 (Seyfert) NGC 4151 (8) 3U 1207+39
2U 1207 +39
6.0±0.6
2U 1211-64
32 3 Very flat spectrum 3U 1223 - 62 GX 301 + 0 (9, 10)
2U 1223-62
4.2±0.5* 3C 273 (oso) 3C 273 (1,2, 11) 3U 1224+02
2U 1224+02
21.7 ±0.3 Virgo cluster VIR xr-l (1) 3U 1228 + 12 M87=Vir a M 87 (2)(11)
t 2U 1228+12
6.7±1.4 IC 3576 1(2) 3U 1231 +07
2U 1231 +07
1.3 ±0.4 NGC 4428, 4433, 4487? 3U 1237 -07
420 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1247 -41 1247 19 302.60 124841 1246 0 1246 0 124841 0.0506 -41 224 21.56 -405924 -405924 -41 524 --41 524
191.83 192.17 191.50 191.50 192.17 -41.04 -40.99 -40.99 -41.09 -41.09
3U 1262-78 125229 303.91 1253 31 124941 1251 31 125517 0.1300 -285736 33.63 -285024 -285736 -29 336 -2857 0
193.12 193.38 192.42 192.88 193.82 -28.56 -28.84 - 28.96 -29.06 -28.95
3U 1254-69 125422 303.48 125417 1254 5 125426 125438 0.0010 -69 112 - 6.43 -69 0 0 -69 112 -69 224 -69 112
193.59 193.57 193.52 193.61 193.66 -69.02 -69.00 -69.02 -69.04 -69.02
3U 1257 +20 125729 56.33 125755 1257 2 125655 125748 0.0110 281124 87.96 2811 24 281424 281124 28 824
194.37 194.48 194.26 194.23 194.45 28.19 28.19 28.24 28.19 28.14
3U 1258 - 61 12 58 3 304.08 1258 5 12 57 51 1258 3 1258 14 0.0020 -612010 1.24 -6118 4 - 611756 - 612244 -612234
194.512 194.522 194.463 194.512 194.558 -61.336 - 61.301 - 61.299 -61.379 -61.376
3U 1320-61 13 2042 306.74 13 2026 13 18 36 13 21 0 13 22 36 0.1400 - 614330 0.54 - 6124 0 - 612548 -62 3 0 -6157 0 200.175 200.11 199.65 200.25 200.65
- 61.725 - 61.40 - 61.43 -62.05 -61.95
3U1327-42 13 22 12 309.45 13 22 36 13 2150 13 21 50 13 22 36 0.0125 -424724 19.39 -424424 -424424 -424948 -424948 200.55 200.65 200.46 200.46 200.65
-42.79 -42.74 -42.74 - 42.83 -42.83
3U 1349+24 13 49 12 24.08 14 048 13 39 36 13.4024 14 024 12.0000 2427 0 76.16 2545 0 2545 0 23 6 0 23 6 0
207.30 210.2 204.9 205.1 210.1 24.45 25.75 25.75 23.10 23.10
3U 1410-03 141055 339.17 141024 14 929 1411 24 141212 0.1400 - 3 336 53.70 - 24948 - 3 0 0 - 31648 - 3 748 212.73 212.60 212.37 212.85 213.05
- 3.06 - 2.83 - 3.00 - 3.28 - 3.13
(4A) (4B)
6.2±0.3
4.5 ±0.3
25.5 ±0.6
14.8 ±0.3
47 5
6.2 ± 1.6
8.0 ±0.3
3.8 ±0.9
3.5 ±0.5
CATALOG OF X-RAY SOURCES
(5A)
NGC 4696 = PKS 1245 - 41 (5) Rich cluster in southern sky
Coma cluster: Abell 1656
Very flat spectrum
NGC 5128 = Cen A
NGC 5506, 5507?
(5B)
2U 1247 -41
2U 1253 -28
2U 1254-69
Coma cluster (1) Coma X-I (13)
t 2U 1257 + 28
GX 304-1 (9, 10)
2U 1258 -61
NGC 5128 (11)
t 2U 1322-42
2U 1348 +24
2U 1420-02
421
(6)
3U 1247 -41
3U 1252-28
3U 1254-69
3U 1257+28
3U 1258 -61
3U 1320-61
3U 1322-42
3U 1349+24
3U 1410-03
422 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1439-39 1439 2 325.27 1448 0 143024 1430 0 144736 4.0000 - 39 148 18.78 -382812 -382812 -393824 -393824 219.76 222.0 217.6 217.5 221.9
-39.03 -38.47 -38.47 -39.64 -39.64
3U 1443+43 1443 2 74.66 144426 144134 144134 144426 0.1500 43 224 62.16 431124 431124 4254 0 4254 0
220.76 221.11 220.39 220.39 221.11 43.04 43.19 43.19 42.90 42.90
3U 1510-55 1510 7 320.31 151046 15 936 15 934 151036 0.0141 -59 0 0 - 1.21 -585848 -585548 -59 148 -59 412 227.53 227.69 227.40 227.39 227.65
-59.00 -58.98 -58.93 -59.03 -59.07
3U 1516-56 151644 322.11 151640 151638 151646 151650 0.0002 -5659 2 0.05 -565823 -565859 -565938 -5659 2 229.132 229.168 229.160 229.193 229.209
-56.934 -56.473 -56.983 -56.994 -56.984
3U 1533-52 1538 14 327.40 153846 153755 153741 153834 0.0096 -521048 2.24 -521048 -52 748 -521124 -521424 234.56 234.69 234.48 234.42 234.64
-52.13 -52.18 -52.13 -52.19 -52.24
3U 1543-62 1543 0 321.71 154331 154243 154226 1543 17 0.0029 -622436 - 6.29 -6224 0 -6224 0 -622548 -622548 235.75 235.88 235.68 235.61 235.82
-62.41 -62.40 -62.40 -62.43 -62.43
3U 1543-47 154350 330.93 154355 154341 154348 1544 2 0.0006 -473336 5.36 -473448 -473148 -473224 -473524 235.96 235.98 235.92 235.95 236.01
-47.56 -47.58 -47.53 -47.54 -47.59
3U 1544-75 1544 0 313.24 154736 154248 154012 154536 0.0753 -7545 0 -16.75 -753748 -753748 -755212 -755212 236.00 236.90 235.70 235.05 236.40
-75.75 -75.63 -75.63 -75.87 -75.87
3U 1551 + 15 1551 36 27.50 16 6 0 154048 154512 161024 15.0000 1554 0 46.30 19 0 0 15 6 0 13 24 0 1654 0
237.9 241.5 235.2 236.3 242.6 15.9 19.0 15.1 13.4 16.9
(4A) (4B)
3.3 ±0.4
3.0±0.7
6.4±0.6
720 ;;;.20
11.3 ±0.7
36 3
2000 ;;;.100
3.1 ±0.3
2.1 ±0.5
CATALOG OF X-RAY SOURCES
(5A)
MSH 15-52A (SNR)? MSH 15-52B (SNR)?
Large intensity changes in seconds
Hercules cluster: Abell 2147, 2151, 2152 (5) Arp71, 122, 172, 272, 324? Markaryan298, 299, 300?
(5B)
2U 1440-39
2U 1443+43
2U 1509-58
Lup XR-l (1, 2)? Cir X-I (14) NOR 2 (3)? 2U 1516-56
NOR XR-2 O)? NOR 2 (3)?
2U 1536-52
2U 1542-62
t 2U 1543 -47
2U 1544-75
423
(6)
3U 1439-39
3U 1443 +43
3U 1510-59
3U 1516-56
3U 1538-52
3U 1543 -62
3U 1543 -47
3U 1544-75
3U 1551 + 15
424 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1555+27 155529 43.92 1558 0 155238 155248 155819 0.3400 2712 0 48.82 273224 27 636 2651 0 271648
233.872 239.5 238.16 238.20 239.58 27.20 27.54 27.11 26.85 27.28
3U 1556-60 155654 324.13 155738 155612 155612 155738 0.0105 -603748 - 5.97 -6036 0 -6036 0 -603936 -603936 239.227 239.407 239.052 239.052 239.407
,-60.63 -60.60 -60.60 -60.66 -60.66
3U 1617 -15 1617 7 359.09 1617 4 161655 1617 7 161718 0.0021 -153213 23.77 -153047 -153148 -153336 -153235 244.278 244.266 244.231 244.280 244.325
-15.537 -15.513 -15.530 -15.560 -15.543
3U 1623 +05 1623 12 19.74 16 819 16 8 7 1638 7 163843 12.0000 524 0 34.64 724 0 548 0 324 0 454 0
245.80 242.08 242.08 249.53 249.68 5.4 7.4 5.8 3.4 4.9
3U 1624-49 152419 334.92 1624 7 1624 7 162429 162434 0.0020 -47 524 - 0.27 -49 336 -49 448 -49 748 -49 6 0 246.08 246.03 246.03 246.12 246.14
-49.09 -49.06 -49.08 -49.13 -49.10
3U 1626-67 162641 321.75 1627 1 162553 162622 162730 0.0080 -672143 -13.06 -671825 -6722 5 -672454 -672118 246.672 246.755 246.470 246.590 246.875
-67.362 -67.307 - 67.368 - 67.415 -67.355
3U 1630-47 163011 336.90 1630 2 1630 1 163020 163020 0.0011 -471623 0.28 -471453 -471550 -4718 7 -471652 247.544 247.510 247.505 247.585 247.585
-47.273 -47.248 -47.264 -47.302 -47.281
3U 1632-64 163248 324.63 163329 163050 1632 7 163446 0.1800 -64 824 -11.38 -633936 -641912 643824 -635848 248.20 248.37 247.71 248.03 248.69
-64.14 -63.66 -64.32 -64164 -63.98
3U 1636-53 163654 332.91 163654 163644 163654 1637 4 0.0005 -5139 4 - 4.81 -533828 -513838 -533947 -533932 249.226 249.225 249.183 249.225 249.268
- 53.651 -53.641 -53.644 - 53.663 -53.659
(4A) (4B) (5A)
5.1 ±0.7 Star: 138 cRB
17.0±0.9
17.000* 2.5 Star: seo x-I at (X= 16h 17m 048 .3 0=-15 0 31' 13"
2.6 ±0.4
50 5
10.2 ±0.4
[50 3
1.0 ± 1.1
~6.1 ± 3
CATALOG OF X-RAY SOURCES
(5B)
NOR XR-2 (1, 21)? NOR 2 (3)?
2U 1556-60
seo X-I (1, 2) seo 1 (3)
t 2U 1617 -15
2U 1642+04
NOR XR-l (1,2)? NOR 1 (3)?
2U 1624-49
2U 1626-67
NOR XR-l (1, 2)? NOR 1 (3)?
2U 1630-47
2U 1639-62
2U 1637 -53
425
(6A)
3U 1555+27
3U 1556-60
3U 1617 -16
3U 1623 +05
3U 1624-49
3U 1626-67
3U 1630-47
3U 1632-64
3U 1636-53
426 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1639 -~40 153922 63.86 164624 1632 0 1632 0 164624 5.30 401355 41.34 4112 0 4112 0 391648 391648
249.84 251.6 248.0 248.0 251.6 40.232 41.20 41.20 39.28 39.28
3U 1542-45 1642 6 339.58 1642 4 1641 56 1642 9 164217 0.00 -453130 - 0.08 -453032 -453032 -453231 -453213 250.526 250.515 250.485 250.530 250.570
-45.525 -45.509 -45.515 -45.542 -45.537
3U 1645 +21 154514 40.56 1633 19 163231 165231 1653 19 1.10 213224 36.41 223148 221612 21 3 0 21 9 0
251.31 248.33 248.13 253.13 253.33 21.54 22.53 22.27 21.05 21.15
3U 1553 +35 1653 12 58.26 17 614 164819 164646 17 438 0.741 3536 0 38.12 345812 355812 3551 0 345136
253.30 256.56 252.08 251.69 256.16 35.6 34.97 35.97 35.85 34.86
3U 1658-48 165858 338.93 165910 165846 165846 1659 10 0.00 -484337 - 4.32 -4843 1 -4843 1 -484417 -484417 254.74 254.79 254.69 254.69 254.79
-48.727 -48.717 -48.717 -48.738 -48.738
3U 1700-37 17 026 347.75 17 051 17 051 17 0 6 17 0 6 0.001 -374612 2.19 -3748 0 -374424 -374424 -3748 0 255.110 255.213 255.213 255.025 255.025
-37.77 -37.80 -37.74 -37.74 -37.80
3U 1702-36 17 219 349.09 17 214 17 210 17 224 17 229 0.00 - 36 2136 2.76 - 36 20 24 -3621 0 -362212 -362136 255.58 255.56 255.54 255.60 255.62
36.36 -36.34 -36.35 - 36.37 -36.36
3U 1702-42 17 219 343.84 17 255 17 158 17 146 17 241 0.011 -425348 - 1.27 -425736 -425548 -43 036 -43 3 0 255.58 255.73 255.49 255.44 255.67
-42.98 -42.96 -42.93 -43.01 -43.05
3U 1704-32 17 431 352.76 17 334 17 3 5 17 514 17 558 0.05' -32 636 4.96 - 315512 -315736 -321724 -321612 256.13 255.89 255.77 256.31 256.49
- 32.11 -31.92 -31.96 -32.29 -32.27
(4A) (4B)
4.0±0.6
381 3
6.1 ± 1.8
100 ~6
344 3
102
715 2
34.0±2.6
14.0± 1.2
CATALOG OF X-RAY SOURCES
(5A) (5B)
Cluster: Abell 2199? (5) 3C 345 (QSO: optical var. by 2m (15»?
Star: hz Her at a= 16h 56m 028 /)=+35° 25' 03"
Star: HD 153919 at a = 17h oom 328.7 /)=-37° 46' 27"
GX 340 + 0 (16) ARA 1 (3)? (L 3, GX 340-2) O)?
2U 1641-45
t 2U 1705+34
GX 339-4 (17)
t 2U 1700-37
427
(6)
3D 1639+40
3D 1642-45
3D 1645 +21
3D 1653 +35
3U1658-48
3U 1700-37
GX 349 + 2 (2) 3U 1702 - 36 (SCO XR-2, L6, GX-1O.7) 0, 2) SCO 2 (3)
2U 1702-36
ARA XR-1 (1)? GX-14.1 (2)?
2U 1704-42
L 8 (1)?
2U 1701-31
3U 1702-42
3U 1704-32
428 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1705-44 17 524 343.32 17 517 17 515 17 529 17 531 0.001 -44 3 0 - 2.36 -44 148 -44 224 -44 412 -44 3 0 258.349 256.319 256.313 256.373 256.380
-44.05 -44.03 -44.04 -44.07 -44.05
3U 1706+32 17 624 54.64 165712 165443 171912 172224 9.801 32 6 0 34.76 3412 0 3224 0 2954 0 3112 0
256.6 254.3 253.7 259.8 260.6 32.1 34.2 32.4 29.9 31.2
3U 1706+78 17 648 110.82 17 548 17 419 17 748 17 9 7 0.05: 783224 31.81 784424 7830 0 791912 783412
256.70 256.45 256.08 256.95 257.28 78.54 78.74 78.50 78.32 78.57
3U 1709-23 17 926 0.53 17 948 17 922 17 9 2 17 931 0.00' -232136 9.24 -232248 -231912 -232136 -232436 257.36 257.45 257.34 257.26 257.38
-23.36 -23.38 -23.32 -23.36 -23.41
3U 1714-39 17 1455 348.21 171555 171355 17 13 55 171555 0.08 - 3918 0 - 0.99 -391048 -3912 0 -392512 -392324 258.73 258.98 258.48 258.48 258.98
-39.30 -39.18 -39.20 -39.42 - 39.39
3U 1727 -33 172722 354.24 172753 172658 172648 17 27 43 0.00 -3342 0 0.13 -334424 -333712 -333824 -334536 261.84 261.97 261.74 261.70 261.93
-33.70 -33.74 - 33.62 - 33.64 -33.76
3U 1728-24 172850 1.91 1729 1 172841 17 2838 172859 0.00 -2443 1 4.82 -244153 -244153 -244359 -244359 262.207 262.255 262.172 262.158 262.248
-24.717 -24.698 -24.698 -24.733 -24.733
3U 1728 -16 172850 8.49 17 28 48 172844 172852 17 2856 01.00 -165653 9.03 -165610 -165638 -165736 -1657 7 262.208 262.202 262.185 262.216 262.234
-16.948 -16.936 -16.944 -16.960 -16.952
3U 1735 -44 17 3512 346.04 1735 5 173455 1735 17 173526 0.00 -442512 -6.97 -4424 0 -442512 -442624 -442512 263.8 263.77 263.73 263.82 263.86
-44.42 -44.40 -44.42 -44.44 -44.42
CATALOG OF X-RAY SOURCES 429
(4A) (4B) (5A) (5B) (6)
280 3 3D 1705 -44
2D 1705 -44
4.1 ±0.6 3D 1706+32
3.2 ±0.3 Cluster: Abell 2256 (5) 3D 1706+78
2D 1706+78
39 5 OPHXR-2 (1) 3D 1709-23 OPH 2 (3)
2U 1705 - 22
11.6 ±2.2 (SCO XR-2, L 6, GX-I0.7) (I)? 3D1714-39 (SCO XR-5) O)? (SCO 2, seQ 5) (3)?
2D 1718-39
65 10 GX 354 + 0 (18) 3D 1727 -33 (M 4, GX 354 - 5) (1) GX-5.6 (1, 2)
2UI726-33
60.3 ±2.4 GX 1 + 4 (10, 19) 3UI728-24 SGR 6 (3)?
2U 1728 -24
260 1.7 GX9+9(1,2) 3D 1728 -16 OPH 3 (3)
2U 1728 -16
21O±6 3U 1735 -44
2U 1658-46
430 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1735 -78 173524 359.57 173536 173448 17 35 12 1736 0 O.Q3S -2827 0 1.56 -2818 0 -2827 0 -2836 0 -2827 0 263.85 263.90 263.70 263.80 264.00
-28.45 -28.30 -28.45 -28.60 -28.45
3U 1736+43 173624 68.83 174124 172750 173053 174412 1.80( 43 3 0 31.08 44 824 421048 41 51 36 434948
264.10 265.35 261.96 262.72 266.05 43.05 44.14 42.18 41.86 43.83
3U1743-29 1743 36 359.95 1745 12 17 4312 174224 174236 0.091 -29 748 - 0.33 -29 6 0 -29 0 0 -29 6 0 -2918 0 265.5 266.3 265.8 265.6 265.9
-29.13 -29.1 -29.0 -29.1 -29.3
3U1744-26 174444 2.27 174442 17 44 38 174446 174451 O.OOC -263343 0.80 -263253 -263329 -263434 -263358
266.185 266.176 166.157 266.193 266.214 -26.562 - 26.548 -26.558 -26.576 -26.566
3U 1746-37 174648 353.55 174748 17 47 0 174555 174641 0.018 - 37 036 - 4.99 - 36 56 49 - 365649 - 37 354 -37 354 266.7 266.95 266.75 266.48 266.67
- 37.01 - 36.947 - 36.947 - 37.065 - 37.065
3U 1755 - 33 175534 357.24 1755 19 17 54 58 17 55 48 17 56 10 0.Q1~
-3348 0 - 4.91 -334343 - 334612 - 335212 -334948 268.89 268.83 268.74 268.95 269.04
- 33.80 - 33.73 - 33.77 -33.87 - 33.83
3U 1758 -25 1758 7 5.08 1758 7 1758 0 1758 7 1758 14 O.OOC -25 448 1.03 -25 412 -25 448 -25 6 0 -25 524
265.53 269.53 269.50 269.53 269.56 -25.03 -25.07 -25.08 -25.10 -25.09
3U 1758-20 17 58 34 9.07 175834 175829 175835 175839 O.OOC -203213 1.15 -203137 -2032 6 -203249 -203220
269.643 269.640 269.623 269.646 269.664 -20.537 -20.527 -20.535 -20.547 -20.539
3U 1809 + 50 18 924 78.18 18 522 18 419 18 13 31 18 1434 0.390 501948 26.85 504912 5037 12 495248 50 224
272.35 271.34 271.08 273.38 273.64 50.33 50.82 50.62 49.88 50.04
(4A)
565
10.8 ±2.4
40±5
460
30.7 ± 1.8
47
1127
595
5.1 ±0.3
(4B)
;?; 10
CATALOG OF X-RAY SOURCES
(5A) (5B)
t 2U 1735-28
Globular cluster: M 92 = NGC 63411
(KE 56, KE 55)1 (SNR 1742 - 28, SNR 1741-29)1
2U 1735 +43
SGR 1 (3)? (L 13, M 1) (1)?
t 2U 1743 -29
3 GX 3 + 1 (GX + 2.6, L 14, SGR XR-1) (1) GX 3 + 1 (2, 10) SGR 6 (3)
2U 1744-26
Globular cluster: NGC 64411
3 GX-2.5 (1, 2) SCQ XR-6(1)
2U 1757-33
2 GX 5-1, (GX + 5.2, L 27, SGR XR-3) (1) GX-1 (2, 10) SGR 5 (3)
2U 1757-25
2 GX 9 + 1, (GX + 9.1, L 18, L 19, M 31) (1) SGR 3 (3) GX9+1 (2)
2U 1758-20
2U 1808+50
431
(6)
3U 1735 -28
3U 1736+43
3U 1743 -29
3U 1744-26
3U 1746-37
3U 1755-33
3U 1758-25
3U 1758 -20
3U 1809+50
432 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1811-17 13 11 42 13.52 161142 18 11 36 18 11 43 181148 0.0005 -1711 6 0.08 -171026 -171052 -171138 -171117 272.927 272.925 272.902 272.928 272.952
-17.185 -17.174 -17.181 -17.194 -17.188
3U 1312-12 1812 5 18.01 1811 38 181117 18 1231 181255 0.0372 12 636 2.45 -11 5924 -12 3 0 -121424 -121012
273.02 272.91 272.82 273.13 273.23 -12.11 -11.99 -12.05 -12.24 -12.17
3U 1813 -14 1813 10 16.42 18 13 17 1813 7 1813 2 18 13 14 0.0009 -14 336 1.28 -14 336 -14 224 -14 336 -14 412 273.29 273.32 273.28 273.26 273.31
-14.06 -14.06 -14.04 -14.06 -14.07
3U 1820-30 182026 2.78 182031 182020 182020 182031 0.0006 -302320 7.91 -302252 -302252 -302353 -302353 275.107 275.129 275.084 275.084 275.129
-30.389 -30.381 -30.381 -30.398 -30.398
3U 1822-37 182214 356.79 1821 55 182114 182236 182317 0.0231 -371124 -11.29 -37 748 - 3710 48 - 3715 0 - 3712 0 275.56 275.48 275.31 275.65 275.82
-37.19 - 37.13 -37.18 -37.25 -37.20
3U 1822-00 182252 29.95 182241 182226 1823 2 182317 0.0086 - 0 210 5.78 o 050 - 0 050 - 0 513 - 0 329 275.716 275.67 275.61 275.76 275.82
- 0.036 0.014 - 0.014 - 0.087 - 0.058
3U 1825 + 81 182536 113.19 18 1736 18 936 1835 12 1835 12 0.6900 8118 0 27.94 8230 0 822024 795512 805512
276.40 274.4 272.4 278.8 278.8 81.30 82.50 82.34 79.92 80.92
3U 1832-23 1832 0 10.41 183146 183050 183212 1835 12 0.0960 -231312 - 6.95 -23 748 -231124 -231948 -231612 278.00 277.94 277.71 278.05 278.80
-23.22 -23.13 -23.19 -23.33 -23.27
3U 1832-05 183210 26.36 183014 183024 183424 1834 0 0.1800 - 518 0 1.28 - 45848 - 513 12 - 53524 - 524 0 278.04 277.56 277.60 278.60 278.50
- 5.30 - 4.98 - 5.22 - 5.59 - 5.40
(4A)
345
12.1 ± 1.2
588
250
16.9±1,4
36.6± 1.7
2.7±0.3
6.9±0.9
6.1 ± 1.0
CATAWG OF X-RAY SOURCES 433
(4B) (5A)
1.5
1.5
1.5 Globular cluster: NGC 6624?
3C 390.3 (N galaxy)?
(5B) (6)
(GX + 13.5, L 20, SGR XR-2) (1) 3U 1811 -17 GX 13 + 1 (1, 2) SGR2(3)
2U 1811-17
SER XR-2 (I)?
2U 1813 -12
GX 17+2, (GX + 16.7) (1, 2) (L 21, SER XR-2) (1)? SER2 (3) t 2U 1813 -14
SGR XR-4(1) SGR 4 (3)
2U 1820-30
SGR 7 (3) SCO XR-6 O)?
2U 1822-37
2U 1822+00
2U 1828 +81
2U 1833-05
3U 1812-12
3U 1813 -14
3U 1820-30
3U 1822-37
3U 1822-00
3U 1825 + 81
3U 1832-23
3U 1832-05
434 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 1837 +04 1837 19 36.10 183726 1837 14 183712 183726 0.00 45924 4.88 45924 5 036 45924 45812
279.33 279.36 279.31 279.30 279.36 4.59 4.90 5.01 4.99 4.97
3U 1843 + 67 184326 97.88 191829 184434 1841 31 191614 2.10 6730 0 25.68 65 448 674424 67 19 12 643936
280.86 289.62 281.14 280.38 289.06 67.50 65.08 67.74 67.32 64.66
3U1845-77 1849 0 317.47 185012 184631 184731 18 51 12 0.151 -77 6 0 -26.65 -7636 0 -77 0 0 -7736 0 -7712 0 282.25 282.55 281.63 281.88 282.80
-77.10 -76.6 -77.0 -77.6 -77.2
3U 1901 +03 19 141 37.14 19 019 19 019 19 246 19 246 0.03 3 112 - 1.42 31348 31048 24948 35324
285.42 285.08 285.08 285.69 285.69 3.02 3.23 3.18 2.83 2.89
3U 1904+ 67 19 448 97.83 19 2 0 19 0 0 1933 36 1920 0 1.10 67 0 0 23.56 6718 0 67 0 0 6448 0 6612 0
286.2 285.5 285.0 293.4 290.0 67.0 67.3 67.0 64.8 66.2
3U1906+09 19 624 43.62 19 512 19 4 0 19 8 0 19 848 0.221 94312 0.65 10 148 95624 924 0 930 0
286.6 286.3 286.0 287.0 287.2 9.72 10.03 9.94 9.40 9.50
3U 1508 +00 19 8 7 35.67 19 750 19 750 19 822 19 829 0.00 03112 - 4.00 03224 03148 02924 030 0
287.03 286.96 286.96 287.09 287.12 0.52 0.54 0.53 0.49 0.50
3U 1912+07 191216 42.55 191717 19 1855 19 8 0 19 1848 0.77 742 0 - 1.65 757 0 757 0 727 0 727 0
288.15 289.32 289.73 287. 289.7 7.7 7.95 7.95 7.45 7.45
3U 1915 -05 19 15 36 31.34 1914 2 19 13 43 19 1734 19 1753 0.12' - 51648 - 8.32 - 5 748 - 5 748 - 52512 - 51912 288.90 288.51 288.43 289.39 289.47
- 5.28 - 5.13 - 5.24 - 5.42 - 5.32
(4A) (4B) (5A)
270 2
3.5 ±0.4
3.0±0.5
87 4
5±1
7.6 ± 1.4
199 3
21.5 ± 1.0
23 57 Star: 26 f AQL?
CATALOG OF X-RAY SOURCES
(5B)
(GX + 36.3, SER XR-1) (I)? SER XR-1 (2), SER 1 (3)
2U 1836+05
2U 1843 + 67
2U 1849-77
2U 1907+02
2U 2012+62
AQLXR-1 (1) AQL 1 (3)
2U 1908+00
2U 1912-05
435
(6)
3U1837 + 04
3U 1843 +67
3U 1849-77
3U 1901 + 03
3U 1904+67
3U1906+09
3U 1908+00
3U 1912+07
3U 1915 -05
436 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3D 1921 + 43 1921 41 75.51 192350 1921 2 19 1929 192217 0.20 432343 13.01 432436 4345 0 4345 0 431236
290.42 290.96 290.26 289.87 290.57 43.48 43.41 43.75 43.56 43.21
3D 1953 + 31 1953 55 68.39 1954 0 1953 17 195355 195434 0.01 31 5624 1.88 31 5924 31 5848 31 54 0 31 5436
298.48 298.50 298.32 298.48 298.64 31.94 31.99 31.98 31.90 31.91
3D 1956 + 65 1956 0 97.82 1924 0 1922 0 201736 2020 0 2.801 65 0 0 18.00 6836 0 6824 0 6130 0 6142 0
299.0 291.0 290.5 304.4 305.0 65.0 68.6 68.4 61.5 61.7
3D 1956 + 35 195622 71.32 195630 195619 195615 195626 0.00 35 336 3.08 35 358 35 510 35 314 35 2 2
299.092 299.124 299.078 299.064 299.109 35.060 35.066 35.086 35.054 35.034
3D 1956+ 11 195648 51.30 195655 1956 0 195643 195741 0.04 11 36 0 - 9.27 11 4236 11 4048 11 30 0 11 31 48
299.2 299.23 299.00 299.18 299.42 11.6 11.71 11.68 11.50 11.53
3D 1957 + 40 195712 76.14 195548 1955 2 195838 1959 7 0.2~ 4036 0 5.85 405624 404012 401424 4031 48
299.30 298.95 298.76 299.66 299.78 40.60 40.94 40.67 40.24 40.53
3D 1959 - 69 195936 325.86 195536 195336 20 312 20 712 0.8i -6942 0 - 31.67 -6827 0 -69 0 0 -7057 0 -7045 0 299.90 298.9 298.4 300.8 301.8
-69.70 - 68.45 -69.00 -70.95 -70.75
3D 2030+40 203033 79.84 203033 203027 203035 203040 O.OC 4047 6 0.71 404822 404738 404550 404634
307.639 307.636 307.613 307.645 307.666 40.785 40.806 40.794 40.764 40.776
3D 2041 +75 2041 55 109.36 2031 36 202848 2050 0 2054 0 1.2C 752512 19.86 77 6 0 7642 0 7354 0 7424 0
310.48 307.9 307.2 312.5 313.5 75.42 77.1 76.7 73.9 74.4
(4A) (4B)
6.3 ±0.6
63 5
4.7 ±OA
1175 5
17.4±0.9
5.6± 1.6
2.8 ±OA
194 ;;.3
3A±0.7
CATALOG OF X-RAY SOURCES
(5A)
Cluster: Abell 23191 (5)
Star: HDE 226868 at a = 19h 56m 28'.843 0= + 35° 03' 54H .51
CYG A = 3C 405 (5)
(5B)
2U 1926+43
2U 1954+31
2U2006+59
cyg x-I (1,2) cyg 1 (3) t 2U 1956+35
2U 1957+40
2U 1954-68
CYG X-3 (1,2) CYG3 (3)
t 2U2030+4O
2U2041 +75
437
(6)
3U 1921 +43
3U 1953 +31
3U 1956+65
3U 1956+35
3U 1956+11
3U 1957+40
3U 1959-69
3U 2030 +40
3U2041 +75
438 APPENDIX C
Table II (continued)
(1) (2A) (2B) (3A) (3B) (3C) (3D) (3E)
3U 2052+47 205224 87.85 21 512 2054 0 204048 205024 3.1000 475512 2.09 4848 0 4848 0 47 0 0 47 0 0
313.1 316.3 313.5 310.2 312.6 47.92 48.8 48.8 47.0 47.0
3U 2128 +81 212848 116.07 2242 0 2144 0 2048 0 2034 0 1.1000 8136 0 21.84 8248 0 8218 0 8054 0 7954 0
322.20 340.5 326.0 312.0 308.5 81.6 82.8 82.3 80.9 79.9
3U2129 +47 212958 91.60 212953 2129 0 21 3010 213053 0.0269 47 148 - 3.11 47 712 47 448 465624 47 0 0
322.49 322.47 322.25 322.54 322.72 47.03 47.12 47.08 46.94 47.00
3U2131 +11 21 3112 65.55 212512 212136 213648 21 41 36 1.4000 11 49 12 -28.08 12 6 0 11 48 36 11 33 0 11 49 12
322.8 321.3 320.4 324.2 325.4 11.82 12.10 11.81 11.55 11.82
3U2142+38 214235 87.32 214241 214233 214230 214239 0.0003 38 513 -11.32 38 535 38 535 38 455 38 455
325.648 325.669 325.636 325.624 325.662 38.087 38.093 38.093 38.082 38.082
3U 2208+54 22 836 101.02 22 9 0 22 7 2 22 810 221014 0.1000 542924 - 1.14 544236 5428 12 541536 543036
332.15 332.25 331.76 332.04 332.56 54.49 54.71 54.47 54.26 54.51
3U 2233+59 2233 0 106.53 224224 222224 222224 224224 2.8000 5933 0 1.36 60 6 0 60 6 0 59 0 0 59 0 0
338.25 340.6 335.6 335.6 340.6 59.55 60.1 60.1 59.0 59.0
3U2321 +58 232113 111.75 232113 2321 6 232113 232120 0.0004 583329 - 2.12 583426 5833 0 583235 583358
350.303 350.305 350.276 350.303 350.332 58.558 58.574 58.550 58.543 58.566
3U2346+26 2346 7 105.99 235624 2340 0 2340 0 235624 7.0000 2630 0 -34.02 2724 0 2724 0 26 0 0 25 0 0
356.53 359.1 355.0 355.0 359.1 26.50 27.4 27.4 26.0 25.0
(4A) (4B)
6.2 ± 0.5
1.5 ±0.3
1l.6±0.5
4.1 ±0.4
540 ;;;02.5
4.4±0.8
4.7 ±0.4
53.4± 1.0
7.0± 1.2
CATALOG OF X-RAY SOURCES
(5A)
Globular cluster: M 5 = NGC 70781
Star: CYG X-2 at a= 21h 42m 368 .91 0= + 38° 05' 2T.9
CASA=3e461
Cluster: Abell 2666 (5) ABELL 26341
(5B)
2U2128+81
2U2130+47
2U2134+11
eyg x-2 (1, 2) cyg 2 (3)
t 2U2142+38
2U2208+54
CAS A(1, 2) CAS A (3)
2U2321 +58
439
(6)
3U2052+47
3U 2128 +81
3U 2129+47
3U 2131 + 11
3U 2142+38
3U2208+54
3U2233 +59
3U2321 +58
3U 2346 +26
440 APPENDIX C
References to Table II
1. Oda, M. and Matsuoka, M.: 1970, Progress Elementary Particle Cosmic Ray Phys. 10, 305. 2. Kellogg, E.: 1970, 'A Catalog of Soft X-ray Sources', American Science and Engineering, ASE-
2536. 3. Seward, F.: 1970, 'An Illustrated Catalog of Cosmic X-Ray Sources', LRL Report UDID-15622. 4. Leong, C., Kellogg, E., Gursky, H., Tananbaum, H., and Giacconi, R.: 1971, Astrophys. J.
(Letters) 170, L67. 5. Kellogg, E., Murray, S., Giacconi, R., Tananbaum, H., and Gursky, H.: 1973, Astrophys. J.
(Letters) ISS, L13. 6. Fritz, G., Davidson, A., Meekins, J., and Friedman, H.: 1971, Astrophys. J. (Letters) 164, L81. 7. Giacconi, R., Gursky, H., Kellogg, E., Schreier, E. and Tananbaum, H.: 1971, Astrophy,<. I.
(Letters) 167, L67. 8. Gursky, H., Kellogg, E., Leong, C., Tananbaum, H., and Giacconi, R.: 1971, Astrophys. J.
(Letters) 165, L43. 9. Lewin, W., McClintock, J., Ryckman, S., and Smith, W.: 1971, Astrophys. I. 166,169.
10. Ricker, G. R., McClintock, J. E., Gerassimento, M., and Lewin, W. G. H.: 1973, Astrophys. J. 184,237.
11. Kellogg, E., Gursky, H., Leong, c., Schreier, E., Tananbaum, H., and Giacconi, R.: 1971,Asfrophys. J. (Letters) 165, L49.
12. Margon, B., Spinrad, H., Heiles, C., Troumassian, H., Harlan, E., Bowyer, S., and Lampton, M.: 1972, Astrophys. J. (Letters) 178, L77.
13. Gursky, H., Kellogg, E., Murray, S., Leong, C., Tananbaum, H., and Giacconi, R.: 1971, Astrophys. J. (Letters) 167, L81.
14. Schreier, E., Gursky, H., Kellogg, E., Tananbaum, H., and Giacconi, R.: 1971, Astrophys. J. (Letters) 170, L21.
15. Hunter, J. H. and Lu, P. K.: 1969, Nature 223,1045. 16. Bradt, H., Burnett, B., Mayer, W., Rappaport, S., and Schnopper, H.: 1971, Nature 229,96. 17. Markert, T. H., Clark, G. W., Lewin, W. H. G., Schnopper, H. W., and Sprott, G. F.: 1973,
IAU eire. No. 2483, 24 Jan. 18. Kellogg, E., Gursky, H., Murray, S., Tananbaum, H., and Giacconi R.: 1971, Astrophys. J.
(Letters) 169, L99. 19. Lewin, W. H. G., Ricker, G. R., and McClintock, J. E.: 1971, Astrophys. J. (Letters) 169, Ll7.
Catalogs and Lists of Interesting Objects
1. Abell, G. 0.: 'Distribution of Rich Clusters of Galaxies', Astrophys. J. Suppl. 31, 3, May 1958. 2. Arp, H.: 1966, 'Atlas of Peculiar Galaxies', California Institute of Technology, Pasadena. 3. Arp, H.: 1965, in A. Blaauw and M. Schmidt (eds.)., 'Galactic Structure', Globular Clusters in
the Galaxy, University of Chicago Press, Chicago, Ch. 19, pp. 4Q1-434. 4. Becvar, A.: 1962, 'Atlas Coeli 1950.0', Sky Publishing Corporation, Cambridge, Mass. 5 .. Bennett, A. S.: 1962, 'The Revised 3C Catalog of Radio Sources', Mem. Roy. Astron. Soc. 68,
163-172. 6. de Vaucouleurs, G. and de Vaucouleurs, A.: 1964, 'Reference Catalog of Bright Galaxies', Uni
versity of Texas Press, Austin. 7. de Veny, J. B., Osborn, W. H., and Hanes, K.: 'A Catalog of Quasars', Astron. Soc. Pacific 83,
1971; and private communication, 1972. 8. Downes, D.: 1971, 'New Radio Results on Supernova Remnant', Astron. J. 76, 305-376. 9. Kraus, J. D.: 1966, 'Radio Astronomy' (Appendix 3c - Sydney (MSH) List of Radio Sources),
MacMillan, New York, pp. 429-438. 10. Markarian, B. E.: 'Galaxies with Ultraviolet Continuum I, II, III', Astrojiz. 3, 55-58, 1967;
1969a, ibid. 5, 443-459; 1969b, ibid., pp. 581-592. 11. Milne, D. K.: 1970, 'Nonthermal Galactic Radio Sources', Australian J. Phys. 23, 425-444. 12. Terzian, Y.: 1973, 'Pulsars', Cornell University. private communication. November 16.
CATALOG OF X-RAY SOURCES 441
TABLE III
3U 0115 -73 In SMC. Eclipsing binary, period 3.895 ± 0.045 days. Flat spectrum with 1.5-2.5 keY variable cutoff. Optical identification with Sanduleak star 160. [1, 2, 3]
3U 0316 + 41 Perseus Cluster. Centered on NGC 1275 - 0~7 extent, implying an X-ray diameter of - 750 kpc. [4, 5]
3U 0531 + 21 Time averaged pulsed flux is about one-twelfth of the total X-ray flux. [6] 3U 0833 - 45 Centered on pulsar PSR 0833 - 45 and emitting pulsed X-radiation. [7, 8] 3U 0900 - 40 Eclipsing binary, period 8.95 ± 0.01 days. Irregular variability on the time scale of
hours. Flat spectrum with 2.2-4.4 keY cutoff. Optical identification with HD 77581. [9, 10, 11, 12]
3U 1118 - 60 Cen X-3. Eclipsing binary, period 2.08707 days. Pulsating with period 4.84239 s. Extened low states. [13]
3U 1228 + 12 Virgo Cluster. Centered onM87 - 0~7extent, implying an X-ray diameter of - 200kpc. [5,14]
3U 1257 + 28 Coma Cluster. - 0% extent, implying an X-ray diameter of - 1050 kpc. [4,5] 3U 1322 - 42 NGC 5128. Emission associated with unusual radio galaxy. Spectrum cutoff at 3.4keV.
(15] 3U 1543 - 47 Transient source first observed in August 1971, at 2000 cts S-1. Intensity in February
1973 about 20 cts S-1. Steep spectrum, no observed cutoff. [16] 3U 1617 -15 Sco X-I. Variability on time scale of minutes and hours. Optical identification with
13 m irregular variable blue star. Correlated X-ray-optical variability. (17, 18] 3U 1653 + 35 Her X-I. Pulsating, eclipsing binary, period 1.700165 days. Pulsation period 1.2378 s.
Long time variations with time scale of about 35.7 days. Optical identification with HZ Herculis. [19,20,21]
3U 1700 - 37 Eclipsing binary, period 3.4 days. Variability on the time scale of minutes. Spectrum flat, cutoff 2.1-5.5 keY. Optical identification with 07f star HD 153919. [22]
3D 1735 - 28 GX 359 + 2. Transient source observed for one week during March 1971. Not seen in April with an upper limit of 50 cts S-1. [23]
3U 1743 - 29 GCX. Extended source in the direction of the galactic center, - 2° extent. Location and size consistent with IR and radio sources. Low energy cutoff 2.7 keY. [23,24]
3U 1813 -14 GX 17 + 2. Exponential spectrum with 2.0 keY cutoff. Coincides with weak variable radio source. [25]
3U 1956 + 35 Cyg X-I. Quasi-periodic fluctuation on the order of 0.1 s. Coincides with weak, variable radio source. Optical identification with HDE 226868, binary with 5.6 day period. No X-ray modulatkm detected on this time scale. [26,27,28,29]
3U 2030 + 40 Cyg X-3. X-ray intensity not correlated with large radio flares. Intensity exhibits a 4h.8 ± Oh.02 periodicity. [30,31]
3U 2142 + 38 Cyg X-2. No X-ray optical correlations yet observed. Both intensities vary by 2X on time scales of the order one day. Optical identification with 14m irregular variable [32,33].
References to Table III
1. Leong, c., Kellogg, E., Gursky, H., Tananbaum, H., and Giacconi R.: 1971, Astrophys. J. (Letters) 170, L67.
2. Schreier, E., Giacconi, R., Gursky, H., Kellogg, E., and Tananbaum, H.: 1972, Astrophys. J. (Letters) 178, L71.
3. Liller, W.: 1972, IAU Circ. No. 2469, 'Identification of SMC X-I', Dec. 12, 1972. 4. Forman, W., Kellogg, E., Gursky, H., Tananbaum, H., Giacconi, R.: 1972, Astrophys. J. 178,309. 5. Kellogg, E., Murray, S., Giacconi, R., Tananbaum, H., Gursky, H.: 1973, Astrophys. J. (Letters)
185, L13. 6. Bradt, H., Rappaport, S., Mayer, W., Nather, R. E., Warner, B., MacFarlane, M., and Kristian,
J.: 1969, Nature 222, 728. 7. Kellogg, E., Tananbaum, H., Harnden, F. R., Gursky, H., Giacconi, R., and Grindlay, J.: 1973,
Astrophys. J. 183, 935.
442 APPENDIXC
8. Harnden, F. R., and Gorenstein, P.: 1973, Nature 241, lO7. 9. Forman, W., Jones, C., Tananbaum, H., Gursky, H., Kellogg, E., and Giacconi, R.: 1973,
Astrophys. J. (Letters) 182, Ll03. lO. Brucato, R. J. and Kristian, J.: 1972, Astrophys. J. (Letters) 173, LlO5. 11. Hiltner, W. A., Werner, J., and Osmer, P.: 1972, Astrophys. J. (Letters) 175, Ll9. 12. Ulmer, M. P., Baity, W.A., Wheaton, W. A., and Peterson, L. E.: 1972, Astrophys. J. (Letters)
178, L121. 13. Schreier, E., Levinson, R., Gursky, H., Kellogg, E., Tananbaum, H., and Giacconi, R.: 1972,
Astrophys. J. (Letters) 172, L79. 14. Gursky, H., Solinger, A., Kellogg, E. M., Murray, S., Tananbaum, H., Giacconi, R., and Cava
liere, A.: 1972, Astrophys. J. (Letters) 173, L99. 15. Tucker, W., Kellogg, E., Gursky, H., Giacconi, R., and Tananbaum, H.: 1973, Astrophys. J.
180,715; Erratum, 183, 355. 16. Matilsky, T. A., Giacconi, R., Gursky, H., Kellogg, E. M., and Tananbaum, H. D.: 1972,
Astrophys. J. (Letters) 174, L53. 17. Forman, W., Kellogg, E., Gursky, H., Tananbaum, H., Giacconi, R., Bradt, H., Moore, G.,
Kunkel, W. E., Hiltner, W. A., Thomas, J., Warner, B., and Vanden Bout, P.: 1971, B.A.A.S. 3,457.
18. Sandage, A. R., Osmer, P., Giacconi, R., Gorenstein, P., Gursky, H., Waters, J., Bradt, H., Garmire, G., Sreekantan, B.V., Oda, M., Osawa, K., and Jugaku, J.: 1966, Astrophys. J.146, 316.
19. Giacconi, R., Gursky, H., Kellogg, E., Levinson, R., Schreier, E., and Tananbaum, H.: 1973, Astrophys. J. 184, 227.
20. BahcaJl, J. N. and BahcaJl, N. A.: 1972, Astrophys. J. (Letters) 178, L1. 21. Forman, W., Jones, C. A., and Liller, W.: 1972, Astrophys. J. (Letters) 177, Ll03. 22. Jones, C., Forman, W., Tananbaum, H., Schreier, E., Gursky, H., Kellogg, E., and Giacconi, R:.
1973, Astrophys. J. (Letters) 181, L43. 23. Kellogg, E., Gursky, H., Murray, S., Tananbaum, H., and Giacconi, R.: 1971, Astrophys. J.
(Letters) 169, L99. 24. Hoffman, W. F., Frederick, C. L., and Emery, R. J.: 1971, Astrophys. J. (Letters) 164, L23. 25. Tananbaum, H., Gursky, H., Kellogg, E., and Giacconi, R.: 1971, Astrophys. J. (Letters) 168,
L25. 26. Tananbaum, H., Gursky, H., Kellogg, E., Giacconi, R., and Jones, C.: 1972, Astrophys. J.
(Letters) 177, LS. 27. Hjellming, R. M. and Wade, C. M.: 1971, Astrophys. J. (Letters) 168, L21. 28. Webster, B. L. and Murdin, P.: 1972, Nature 235, 37. 29. Bolton, C. T.: 1972, Nature 235, 271. 30. Hjellming, R. M., Hermann, M., and Webster, E.: 1972, Nature 237, 507. 31. Parsignault, D. R., Gursky, H., Kellogg, E. M., Matilsky, T., Murray, S., Schreier, E., Tanan
baum, H., Giacconi, R., and Brinkman, A. C.: 1972, Nature 239, 123. 32. Tananbaum, H., Kellogg, E., Gursky, H., Murray, S., Schreier, E., and Giacconi, R.: 1971,
Astrophys. J. (Letters) 165, L37. 33. Giacconi, R., Gorenstein, P., Gursky, H., Usher, P. D., Waters, J. R., Sandage, A., Osmer, P.,
and Peach, J. V.: 1967, Astrophys. J. (Letters) 148, Ll29.
Acknowledgement
Fig. 1. Source: from Giacconi, R., Murray, S., Gursky, H., Kellogg, E., Schreier, E., Matilsky, T., Koch, D., and Tananbaum, H.: 1974, Astrophys. J. Suppl. Series, No. 237, 27,37-64. © 1974. The American Astronomical Society. All rights reserved. Printed in U.S.A. (with permission).
Tables I, II, III, and Catalogs and Lists of Interesting Objects. Source: from Giacconi, R., Murray, S., Gursky, H., Kellogg, E., Matilsky, T., Koch, D., and Tananbaum, H.,: 1974, Astrophys. J. Suppl. Series 27, 37-64. © 1974. The American Astronomical Society. All rights reserved. Printed in U.S.A. (with permission).
INDEX
Abell catalogue of rich clusters of galaxies, 9.6.2 Absorption of X-rays: in astrophysical settings, 3.8; absorption coefficient, 3.8;
in detectors, 2.3.1; cross section, 2.3.1; probability for detection by 2 . .3.1 Accretion mechanism in compact X-ray sources: 6.1, 6.2.3, 6.3.1.A, 6.3.1.B, 6.3.2, 6.4;
accretion rates and corresponding X-luminosity, 6.1, 6.2.2; critical luminosity, 6.2.2; formation of disc, 6.2.2
Adiabatic phase in supernova remnants, 7.2 Alfven surface, 6.2.3, 6.3.1B Alfven waves, 6.2.3 Andromeda nebula, M81, 9.1 Angular momentum loss: in the Sun, 5.2.4; by the Crab pulsar, 7.3.4 AS & E: 1.1, 1.2,2.0,2.4.3,2.8,7.1.2,7.4.1,7.5.1 Aspect sensors, 2.2.1; accuracy of sightings, 2.2.1A, B, 2.2.2A Atmospheric X-rays, 10.2.1 Attitude control systems, 2.0, 2.2.1; see also vehicle orientation Auger effect, 2.3.1 Auger electrons, 3.7.2
Babcock-Leighton solar dynamo model, 5.2.5, 5.2.6 Background X-rays: 1.1, discovery, 1.2 Background events - reduction of counts from observations: 2.0, 2.3.4;
limits imposed by time resolution in detectors, 2.3.2; diffuse X-ray background, 2.1, 2.1.3; non-X-ray background, 2.1, 2.1.3; interference with star systems, 2.2.2B; reduction of counts by pulse shape discrimination, 2.3.4; by use of internal guard wires, 2.3.4; by active anticoincidence, 2.3.5; South Atlantic Anomaly Region, 2.3.5
Balloons: for spectrum of Cygnus X-I, 6.4; in observations of Crab nebula, 7.3, 7.3.2; in detection of X-ray background spectrum, 10.2.1
Binary X-ray sources, 1.1,4.1,4.2.2, 6ff Black-body radiation: from neutron stars, 1.2; spectrum 3.8; in close binaries, 6.2.2;
emissivity, 6.2.2; in intergalactic space, 9.1; Rayleigh-Jeans limit for radio observations, 9.1 Black Holes, 4.1, 4.2.2, 6.1, 6.2.1, 6.2.3; possible observation, 6.4; in Sco X-I, 6.7, 6.10, 7.2 Bragg crystal spectroscopy, see disperisive spectrometers. Bremsstrahlung: 3.5 - spectrum, 3.5.1; impact parameter, 3.5.1; from a hot plasma, 3.5.3;
spectrum, 3.5.3; by relativistic electrons, 3.5.4; in close binaries, 6.2.2; (see also emission mechanisms)
Brightness temperature, 3.8.3
Cascade radiation, 3.7.2 Cassiopeia A, 4.1, 7, 7.1.1; radio and X-ray spectral index, 7.3.5;
possibility of hot plasma inside supernova shell, 7.3.5; flux from hot plasma, 7.3.5 Centaurus X-3, 6.1, 6.2.1, 6.2.3, 6.3.2, 6.4, 6.6.2, 6.10 Centaurus X-2, 6.9 (see transient X-ray sources) Centaurus X-4, 6.9 (see transient X-ray sources) Centaurus A, 9.1, 9.3, 9.3.1; lobes, 9.3.2; sign of, 9.6.3 Characteristics of compact X-ray sources, 6.1 Charge exchange, 3.7.2 Chromosphere (solar), 5.2.3 Circinus X-I, 6.6.4 Clusters of galaxies: Abell's catalogue, 9.6.2; Richness, 9.6.2; size, 9.6.3;
importance to cosmology, 10.6.3
444 INDEX
Cluster X-ray sources, 9.1, 9.6; Coma Berenices, 3.5.3,4.3, 8.0,9.6,9.6.3; Virgo, 9.6.1, 9.6.2, 9.6.3; Centaurus, 9.6.3; Perseus, 9.6.1, 9.6.2, 9.6.3;
X-ray emission mechanisms, 9.{>; isothermal gas sphere model, 9.6.; inverse Compton model, 9.6.3; masses, 9.6.3; sizes, 9.6.3
Collision strength, 3.7.1 Compact X-ray sources, 4.1, 4.2.2 Compton absorption, 3.8.4; effective absorption coefficient, 3.8.4; line broadening due to, 3.8.4 Compton-getting effect, 10.5.1 Compton scattering, 2.3.1ff, 3.3, 3.3.1-8; cross section, 3.3.1; polarization, 3.3.5;
from power-law spectrum electrons - Thomson limit, 3.3.6; Klein-Nishina limit, 3.3.7; from discrete sources, 3.3.8; luminosity, 3.3.8; lifetime for electron undergoing, 3.3.8; optical depth, 3.3.8; of cyclotron radiation in close binaries, 6.2.2; of emergency radiation from accreting neutron star, 6.2.3
Compton-synchrotron radiation, 3.4ff Control moment gyroscopes, CMG, 2.2.1A Convection zone (solar), 5.2.1, 5.2.3 Cooling time for radiating plasma, 6.2.2, 6.2.3 Copernicus satellite, 6.3.1A Corona (solar), 5.2.4; X-ray emission from quiet corona, 5.3;
interconnections between active regions, 5.3; coronal abundances, 3.7.1; coronal holes, 5.3; coronal bright spots, 5.3
Cosmic abundances, 7.8 Cosmic black-body radiation, interaction with electrons in clusters of galaxies, 9.6.3 Cosmic ray particles: effect on counting rates for diffuse X-ray background, 10.2.1;
rise of spectrum in development of an expression for the X-ray emissivity, 10.3.1; spectrum needed to produce X-ray background 10.4.1
Coulomb interactions (bremsstrahlung), 3.5 Counting rates: flux from discrete sources, 2.0, 2.1, 2.1.1; flux from diffuse background, 2.1;
non-X-ray flux, 2.1 Crab Nebula: discovery, 1.2; determination ofiuminosity, 1.2; flux, 2.0;
polarization measurement, 2.7, 2.7.IB; and pulsar, 4.2.1, 6.3.lA, 6.4.7.1.1, 7.2, 7.3; angular structure, 7.3.1; and pulsar, 7.1.1, 7.2, 7.3, 7.3.3; spectrum, 7.3.2; polarization, 7.3.2; X-ray luminosity, 7.3.2, 7.5.3; pulsed y-ray flux ,7.3.2; theory of extended X-ray flux, 7.3.4; spectral index of extended flux, 7.3.4; injection of electrons into nebula, 7.3.4; rate of rotational energy loss by pulsar, 7.3.4; interaction of pulsar magnetic field with plasma, 7.3.4
Critical density of Universe, 8.0 Cyclotron radiation, 3.1.2, 3.2.8; in close binaries, 6.2.2, self absorption, 6.2.2, 6.2.3 Cygnus A, 9.3.3 Cygnus Loop, 7, 7.1.1, 7.2, 7.4; angular structure, 7.4.1; spectrum, 7.4.2;
shock wave model, 7.4.3; age, 7.4.3 Cygnus X-I, 6.1, 6.4; =HDE 226868,6.4; radio emission from, 6.4;
mass, 6.4, 6.6.2, 6.6.4, 6.7, 6.10; distribution of gas along line of sight to, 8.1.4 Cygnus X-2, 6.1, 6.2.1, 6.4, 6.8 Cygnus X-3, 6.2.1, 6.4, 6.5; radio counterpart, 6.5; infrared absorption, 6.5;
brightness temperature, 6.5
Debye length, 5.2.4 Degenerate electron gas (see also white dwarfs), 6.1, 6.2.1, 6.2.3 Detection techniques, 1.1, 1.2, 2ff; lunar occultation technique, 1.2; vernier technique, 1.2 Detector efficiency, 2.1 Differential photon flux, 2.2.2B Diffuse X-ray background: (see also background rad); 4.5; from faint X-ray galaxies, 9.7, 10ff, 10.1.3;
discovery, 10.1.2; origin, observed intensity, 10.3.3; emissivity, 10.3.2; theories for, 10.4; inverse Compton emission, 10.4.1; thermal bremsstrahlung from intergalactic plasma, 10.4.2; isotropy, 10.5; continuous structure, 10.5.1; motion of observed relative to X-ray background, 10.5.1; discrete structure, 10.5.2; contribution by unidentified discrete sources, 10.6.2
INDEX
Diffuse X-ray spectrum, 10.2; experimental procedures in determination of, 10.2.1; observational features, 10.2.2; exponential versus power-law form for, 10.2.2
Dipole oscillator strength, 3.7.1 Dispersive spectrometers, 2.6; Bragg crystals, 2.6.1; focus-Bragg spectrometers, 2.6.1;
mosaic crystals, 2.6.1; diffraction gratings, 2.6.2; objective grating spectrometers, 2.6.2 Doppler shift: in synchrotron process, 3.2.3; in Compton scattering, 3.3.2 Doppler variations in periods of compact stellar sources, 6.1
Early history of X-ray astronomy, 1.1, 1.2 Effective lever arm in models of pulsar energy loss, 7.3.4 Einstein-de Sitter Universe, 9.1 Electro-gyro radius, 5.2.4 Electromagnetic waves - propagation through plasma, 3.4.3 Electron densities in solar active regions, 5.4.1 Electron scattering optical depth in close binaries, 6.2.2, 6.2.3; for Sco X-I, 6.7 Emden sphere, 9.6.3 Emission measure in coronal holes, 5.3 Energy loss and production in (solar) active regions, 5.4.2 Error boxes for X-ray sources: (see localization of sources) Evolution of (solar) active regions, 5.4.3; large scale structures, 5.4.3 Evolution of close binaries into X-ray stars, 6.2.1 Experimental sensitivity, 2.1.3 (see weak source detection) Extended sources: procedure for measuring size from Uhuru data, 9.6.1 Extragalactic sources, 4.1, 4.3; galactic clusters, 4.3, 9ff
Filament cavities (solar), 5.3 Focusing optics (see also X-ray mirrors), 2.5; X-ray mirrors, 2.5.2; curved plate mirrors, 2.5.3;
Baez-type mirror, 2.5.3; paraboloid-hyperboloid mirrors, 2.5.4; rise in conjunction with imaging detector, 2.5.5
Fourier analysis, in design of attitude control systems, 2.2.1B Fraunhofer absorption lines in solar spectrum, 5.2.2 Free-free absorption, 3.8.1 Free-free emission, (see Bremsstrahlung radiation) Free-bound transition (see radiative recombination)
Galactic magnetic fields, 9.1, 9.3 Galactic center X-ray source, 9.2 Galactic nucleus binary sources, 6.2.1 Galactic sources, 4.1, 4.2; supernova remnants, 4.2.1
445
Gaunt factor, 3.5.1; temperature averaged, 3.5.3; Bahr approximation, 3.5.3; in recombination, 3.6 Goddard Space Flight Center - NASA, 1.2, 6.4, 7.3.3 Geomagnetically trapped particles: influence on background counting rates, 10.2.1;
removal of counts by anticoincidence detectors, 10.2.1 Granularity of the X-ray background, 10.5.2 Granulation in solar photosphere, 5.2.1, 5.2.2 Gravitational equipotentials for a binary system, 6.2.1; in tidal limit, 6.2.1 G-type subdwarf, 6.8 Guard counters, use in rejection of background, 2.3.4 Gum nebula, 7.5 GX5-1, 4.2.2
Harvard: use of plate stacks in search for transient X-ray sources, 6.9 Heat losses in bremsstrahlung process, 3.3.2; in line emission studies, 3.7.1 Helium main sequence, 6.2.1 Helmut streamers, 5.3 Hercules X-I, 6.1, 6.2.3, 6.3.1, 6.4, 6.10; observations, 63.1A; mass of X-ray component, 6.3.1A;
luminosity and spectrum, 6.3.1A; pulsations, dips, binary period, 35d modulation, 6.3.1A;
446 INDEX
models (theoretical), 6.3.1B; intrinsic absorption, 8.1.5 High Energy Astronomy Observatory, HEAO, A & B missions, NASA, 1.2; HEAO-B, 6.0 High latitude sources, 4.1, 4.4 Hubble relation, 9.1 Hz Herculis, 6.3.1.l Image dissector camera, (see vehicle orientation - star sensors) Impact parameter, bremsstrahlung, 3.5 Instrumentation, 1.2 and Chapter 2 (see under separate headings) Intergalactic medium, 8.0; in rich clusters, 8.0 Interstellar gas: absorption of X-rays, 8.1; absorption coefficient, 8.1.1, 8.1.2;
presence of iron in, 8.1.2 Interstellar grains: scattering of X-rays produced from point sources, 8.3;
differential scattering cross section, 8.3; dependence on heavy element abundance, 8.1.1; effect on source spectra, 8.1.3; distribution in galaxy, 8.1.4
Intrinsic absorption of X-rays by emitting sources, 8.1.5 Inverse Compton effect, 1.2; from extragalactic sources (C en A), 9.3.2;
from cluster sources, 9.6. 9.6.3, for production of diffuse X-ray background, 10.4.1 Ionization and heating of interstellar medium due to radiation from supernova remnants, 7.2
Johann mount, (see dispersive spectrometers - focus-Bragg spectroscopy)
Kepler's supernova, 7.1.1 Klein-Nishina limit, 3.3.1ff; cross section, 3.3.1; spectrum, 3.3.7
Larmor radiation formula, 3.1.2; relativistic, 3.1.3 Lagrangian point, 6.2.1 Lawrence-Livermore group, 6.3.1A, 7.4.1, 7.8.1, 10.2.1 Line emission, 3.7; from a hot plasma, 3.7.1; from non-thermal collisions, 3.7.2 Local group, 9.1, 9.2; mass to luminosity ratio for members of, 9.2 Localization of sources, through determination of the peak of count rate distribution, 2.1.6 Lockheed, 1.2, 2.0 Luminosity distribution function for compact sources, 6.2.2 Lunar fluorescent X-rays, 1.2 Lunar Occultation technique, 1.2; use in observing Crab Nebula, 7.3.1
Loop structure in (solar) corona; 5.3 Low latitude sources, 4.1, 4.2 Lupus Loop, 7.1.1, 7.1.2
Magellanic Clouds, 9.1, 9.2 Magnetic dipole radiation, from Crab pulsar, 7.3.4 Magnetic viscosity in accretion discs, 6.2.2 Markarian galaxies, 9.1., 9.3 Mass absorption coefficient, 2.3.1 Mass exhange (in close binaries), 6.1, 6.2.2 Mass loss rate by primary companion, 6.2.2 ... by the Sun, 5.2.4 Mass function, for Her X-I system, 6.3.1A Mechanical collimators, 2.0, 2.1, 2.4; slat collimators, 2.4.1, high energy limitations, 2.4.1;
uncertainty in line of position, 2.4.3; signal-to-noise ratio for (weak source), 2.4.3; observing time, 2.4.3 (see also modulation collimators)
Microwave background, 4.5, 10.1.2; discovery, origin, intensity, homogeneity, motion of observer relative to rest frame of radiation producing mass, 10.5.1
Milky Way, 9.2; galactic center X-ray source, 9.2 MIT, I.l, 1.2,2.0,2.4.2,2.4.3, 6.3.1A, 6.4, 7.3.1, 7.3.3 Modulation Collimators, 2.0, 2.4.2; use in studying structure of extended sources, 2.4.2;
use of vernier technique to reduce multiplicity of source position provided by, 2.4.2; rotating modulation collimators, 2.4.2, 2.4.3; comparison to slat collimators, 2.4.3;
INDEX
fast Fourier analysis for reduction of data from, 2.4.2; autocorrelation technique, 2.4.2; use in observing structure of Crab nebula, 7.3.1
Mosaic crystal spectrometer, (see dispersive spectroscopy - Bragg crystals) Multi-wire proportional counters, (see proportional counters - position sensitive) M87, 9.1, 9.6, 9.6.1 Neutron star, 4.1, 4.2.1, 4.2.2; remnant, 6.1, 6.2.1, 6.2.3; unlikeliness of in Sco X-I, 6.7, 6.10 Non-focusing collimators, (see mechanical collimators) Non-thermal bremsstrahlung, 3.5.4; efficiency of, 3.5.2 Normal galaxies, 9.2 North Polar Spur, 7.1.2 NRAO, 6.4 NRL, 1.1, 1.2,2.0, 6.4, 7.1.2 Number density versus intensity of X-ray sources, 4.1 Nutation, (see vehicle orientation)
OAO, 1.2 Olber's paradox, 10.1.1 Optical candidates for compact X-ray sources, 6.1 Optical depth: in Compton scattering, 3.3.8; in Compton absorption, 3.8.4;
in free-free absorption, 3.8.1; as a function of photon energy and galactic latitude, 8.2(i). OSO 3, 10.1.3, 10.2.1, 10.5.2 OSO 4, 1.2, 5.4.3 OSO 5,5.4.3 OSO 7, 6.3.1A, 6.6.3
Pair production, 3.3.6 Pfotzer maximum, 10.2.1 Perseus cluster, 9.6, 9.6.1; size of, 9.6.3 Photoelectric absorption, 3.8.2; absorption coefficient, in Bern approximation, 3.8.2;
cross section, 8.1.2, 8.2(i). Photosphere (solar), 5.2.2; period of rotation, 5.2.6 Pitch angle effects, 3.2.8 Plages, 5.2.5 Pointing experiments, 2.1.5 Polarimeters, 2.7; Thomson scattering polarimeters, 2.7.1; Bragg crystal polarimeters, 2.7.2 Polarization of source spectrum: determination, 2.1.7; measurement, 2.1.7 Poynting-Robertson effect, 6.2.2
447
Power law spectrum, 1.2; synchrotron, 3.2.6; Compton scattering (Thomson Limit), 3.3.4, 3.3.6; (Klein-Nishina Limit) 3.3.7; combined Compton-synchrotron, 3.4.2
Precession, (see vehicle orientation) Probability of source location, 2.1.6; in Uhuru catalogue of X-ray sources, 2.1.6 Prominences, 5.2.5 Proportional counters (gas), 2.0, 2.3.2; efficiency, 2.3.2.; time resolution, 2.3.2;
position sensitive, 2.3.3; broad band spectra, 2.3; use in high resolution spectrometers and polarimeters, 2
Pulsars, 7.1.1, 7.2 Pulsating degnerate dwarf model, 6.2.3 Pulsating X-ray sources, 7.1.1 Pulse height analysis, 2.3.8A Pulse shape discrimination (PSD), (See background events, reduction of counts) Puppis A, 7.5.1
Quasi-stellar objects, 9.1, 9.5 Quench gas: use in proportional counters, 2.3.2
Radiative losses: in expanding supernova shell, 7.2 Radiative reaction, 3.2.5
448 INDEX
Radiative recombination, 3.6 Radio emission from compact X-ray sources, 6.1 Raoogalaxies, 9.1, 9.3 Rapidly rotating neutron stars, (see Pulsars) Red giants, 6.1, 6.2.1 Reimann-zeta function: use in Compton scattering spectrum, 3.3.6 Roche surface, 6.2.1, 6.2.2, 6.3.1A, 6.3.1B Rocket effect, 6.2.1 Rockets: in observing compact sources, 6.3.1A (Her X-I), 6.4 (Cyg X-I);
1.2 (Aerobee 150, Nike-Asp, attitude control); observations of galactic cluster sources, 4.3, 9.6.1; use in determining X-ray background spectrum, 10.2.1; observations of supernova remnants, 7.1.2
Roman, N., 1.2 Rossi, B., 1.2 Rotationally supported degenerate dwarfs, 6.2.3 Rowland Circle, (See dispersive spectrometers - focus-Bragg spectroscopy, diffraction gratings)
Sagittarius-Scorpius sources, 4.2.2 SAS-A, (See Uhuru) Satellites, 1.2, 2.0, 2.2, 6.9 (Uhuru, Vela, OSO, OAO); HEAO-A, B, 2.2, 2.2.1A, 2.4.3;
observations of diffuse X-ray background, 10.2.1 Scattering of X-ray photons, 2.3.1, (See Thomson scattering, Compton scattering) Schwarzchild metric, 6.1 ; radius, 6.1 Scintillation counters, 2.0, 2.3.5; energy resolution, 2.3.5 Scorpius X-I, 1.2 (discovery, spectrum, optical identification); flux, 2.0;
inability to detect line emission from, 3.7.1; optical depth for free-free absorption, 3.8.1,4.1,6.1,6.2.1,6.4,6.7; optical observations, 6.7; radio observations, 6.7, 6.8
Seyfert galaxies, 9.1, 9.3, 9.4, 9.6.1 Shannon sampling theory, 2.2.1B Shock waves: dissipation of, to heat (solar) chromosphere, 5.2.3;
heating in close binaries, 6.1, 6.2.2; from supernova explosion, 6.2.1,7.2; from pulsating dwarfs, 6.2.3; heating in cluster sources, 9.6.3
Shot noise, 6.6.4 Slowing down time, of ejected supernova shell, 7.2 SMC X-I, 4.2.2,6.6.2,6.8 =SK 160, 6.6.2 Skylab, 5.3, 5.4.3, 5.5 Slit-type sensor, (See vehicle orientation - star sensors) Soft X-ray background, 8.2; variations with galactic latitude, 8.2; galactic model for, 8.2 SoJar core, 5.2 Solar disc: radius, 5.2.2 Solar flares, 5.2.5; classification, 5.2.5; X-ray emission from, 5.5; temperature structure of, 5.5;
time variability of, 5.5 Solar line emission, 3.7.1 Solar magnetic fields, 5.2.3, 5.2.5, 5.2.6; dipolar and toroidal fields, 5.2.6 Solar rotation, 5.2.6 Solar wind, 5.2.4 Solar X-rays, 1.1, 1.2, 5ff; observations by focusing mirrors, 2.5.4;
with grating spectrometers, 2.6.2 Source counts from scanning observations, 2.1.1; net time on source, 2.1.4;
signal-to-noise ratio for, 2.1.4 South Atlantic Anomaly: effect seen in non-X-ray background, 10.2.1 Spectra of eclipsing sources, 6.1 Spicules (solar), 5.2.3 Spin temperature, 8.4 Statistical uncertainty in source counts, 2.1.1 Stellar winds, 6.2.1, 6.2.2 Strong source, 2.1.2
Subflares, 5.2.5 Sunspots, 5.2.5; reversal of polarities, 5.2.5 Supergranulation, 5.2.1, 5.2.2, 5.2.6, 5.3
INDEX
Supernovae, 1.0, 6.1, 6.2.1; disruption of binary systems by, 6.2.1., 6.7 Supernova remnants, 1.0, 7ff; classification, 7.1.1; age, 7.1.2; rate of birth, 7.1.2;
evolution, 7.2; sheIl expansion, 7.2; luminosity, 7.2; radius, 7.2; thickness, 7.2 Synchrotron radiation, 1.2, 3.2; energy loss, 3.2.2; spectrum, 3.2.3;
lifetime of emitting particles, 3.2.4; polarization, 3.2.7; cutoff, 3.2.8; from extragalactic radio sources, 9.1, 9.3; outside accreting black holes, 6.2.3
Synchrotron self-absorption, 3.8.3
Temperatures in solar active regions, 5.4.1 Thermal bremsstrahlung, 1.2, 3, 9.1;
from intergalactic plasma - role in production of diffuse X-ray background, 10.4.2; (see also Bremsstrahlung from a hot plasma)
Thomson scattering, 3.3.1ff; cross section, 3.3.1; scattering rate, 3.3.2; energy loss by, 3.3.3; spectrum, 3.3.4; polarization, 3.3.5; from a power law spectrum of electrons, 3.3.6
3C273,9.1 Tidal instability in primary comparison, 6.1, 6.2.2 Time-varying sources, observations by proportional detectors, 2.0;
measurement limitations due to uncertainty in proportional counters, 2.3.2 Transient X-ray sources, 6.9; Cen X-2, 6.9; Cen X-4, 6.9 Transmission function of a collimator, 2.1 Trigger phase, 5.5 Turbulent viscosity in accretion disc, 6.2.2 2U 0900 - 40, 6.3.3, =: HD 77581, 6.6.3. 2U 1700-37,6.6.1, =:HD 153919, 6.6.1. 2U 1543 -47,6.9; optical counterpart, 6.9 2U 1735 - 28, 6.9 Tycho Brahe's supernova, 7.1.1, 7.1.2; line emission from, 7.3.5;
radio and X-ray spectral index, 7.3.5; expanding supernova sheIl, 7.3.5
Uhuru (SAS-A): history of experiment, 1.2,2.0,2.2,2.8,4.1,4.2,4.3, 6.1, 6.3.1A, 6.3.2, 6.4, 6.5, 6.6.1, 6.6.3, 6.9; observations of SNR's, 7.1.2; of Crab Nebula-pulsar, 7.3, 9.1, 9.3, 9.6.1, 10.1.3, 10.2.1, 10.2.2, 10.5.2
Uncollimated spectrometers, use in observing solar active regions, 5.4.1
Vehicle orientation, 2.2, Table 2.1; equation of motion, 2.2.1 (A-spinning vehicles, B-pointed vehicles; star sensors, 2.2.2A; gyroscopes, 2.2.2C
Vela pulsar, 4.2.1, 7.1.1. 7.5, 7.5, 7.5.2; model for emission from, 7.5.3; pulsed luminosity, 7.5.3 Vela X-ray nebula, 7, 7.1.1, 7.5.1; shock wave model, 7.5.3; effects of interstellar medium, 7.5.3 Vernier technique, 1.2, (See under modulation collimator) Vidicons, 2.2.2A Virgo cluster of galaxies, 4.3, 8.0, 9.1, 9.6, 9.6.1; size, 9.6.3 Virial theorem, 9.6 Viscous heating in close binaries, 6.1, 6.2.2
Weak source detection, 2.1.3; signal-to-noise ratio for 2.1.3; experimental sensitivity, 2.1.3; threshold magnitude (for star sensors), 2.2.2B.
Wein spectrum in binary systems, 6.2.2 White dwarf, 4.1, 4.2.2, 6.1, 6.2.1, 6.2.3; in Sco X-I, 6.7; in Cyg X-2, 6.8 Window materials used in proportional counters, 2.3.2 Wolf-Rayet system, 6.2.1 Wolter, H.,1.2
X-ray absorption: by interstellar gas, 8.1; photoelectric process, 8.1.1; photoelectric absorption coefficient, 8.1.2; edge effects, 8.1.2; effect on source spectra, 8.1.3;
449
450 INDEX
intrinsic absorption, 8.1.5 X-ray brightness distribution, 9.6.1, 9.6.3 X-ray detectors, 1.1, 1.2, 2.3; 1-20 keY (see proportional counters);
< 10 keY (see scintillation counters); semiconductor detectors, 2.3.6; energy resolution, 2.3.6; use of X-ray photocathodes, 2.3.5; electron channel multiplier arrays, 2.3.7
X-ray emission from (solar) active regions, 5.4; structure of regions as determined from line intensities, 5.4.1; energy loss and production in active regions, 5.4.2
X-ray emissivity, 10.3; formal expression for, 10.3.1; contributions from cosmic rays, 10.3.1; contributions from discrete sources, 10.3.1; individual sources, 10.3.2
X-ray filter system, 2.3.8B; use in measuring planetary fluorescent X-rays, 2.3.8B X-ray fluorescence, 2.3.1, 3.7.2; probability, K-fluorescent yield, 3.7.2 X-ray galaxies, 9.7 X-ray mirrors, (See focusing optics) X-ray reflection, 2.5.1; index of refraction, 2.5.1; reflectivity, 2.5.1 X-ray spectra, 2.3.8; search for best spectral representation (least squares fit), 2.3.8A;
diffuse cosmic spectral corrections, 2.3.8A; (See also background events - reduction of counts)
ASTROPHYSICS AND SPACE SCIENCE LIBRARY
Edited by
J. E. Blamont, R. L. F. Boyd, L. Goldberg, C. de Jager, Z. Kopal, G. H. Ludwig, R. Lust, B. M. McCormac, H. E. Newell, L. I. Sedov, Z. Svestka, and W. de Graaff
1. C. de Jager (ed.), The Solar Spectrum. Proceedings of the Symposium held at the University of Utrecht, 26-31 August, 1963. 1965, XIV + 417 pp.
2. J. Ortner and H. Maseland (eds.), Introduction to Solar Terrestrial Relations. Proceedings of the Summer School in Space Physics held in Alpbach, Austria, July 15-August 10,1963 and Organized by the European Preparatory Commission for Space Research. 1965, IX + 506 pp.
3. C. C. Chang and S. S. Huang (eds.), Proceedings of the Plasma Space Science Symposium, held at the Catholic University of America, Washington, D.C., June 11-14, 1963. 1965, IX + 377 pp.
4. Zdenek Kopal, An Introduction to the Study of the Moon. 1966, XII + 464 pp. 5. B. M. McCormac (ed.), Radiation Trapped in the Earth's Magnetic Field. Proceedings of the
Advanced Study Institute, held at the Chr. Michelsen Institute, Bergen, Norway, August 16-September 3, 1965. 1966, XII + 901 pp.
6. A. B. Underhill, The Early Type Stars. 1966, XII + 282 pp. 7. Jean Kovalevsky, Introduction to Celestial Mechanics. 1967, VIII + 427 pp. 8. Zdenek Kopal and Constantine L. Goudas (eds.), Measure of the Moon, Proceedings of the Second
International Conference on 5elenodesy and Lunar Topography, held in the University of Manchester, England, May 30-June 4, 1966. 1967, XVIII + 479 pp.
9. J. G. Emming (ed.), Electromagnetic Radiation in Space. Proceedings of the Third ESRO Summer School in Space Physics, held in Alpbach, AustriaJrom 19 July to 13 August, 1965. 1968, VIII + 307 pp.
10. R. L. Carovillano, John F. McClay, and Henry R. Radoski (eds.), Physics of the Magnetosphere, Based upon the Proceedings of the Conference held at Boston College, June 19-28, 1967. 1968, X+686 pp.
11. Syun-Ichi Akasofu, Polar and Magnetospheric Substorms. 1968, XVIII + 280 pp. 12. Peter M. Millman (ed.), Meteorite Research. Proceedings of a Symposium on Meteorite Research,
held in Vienna, Austria, 7-13 August, 1968. 1969, XV + 941 pp. 13. Margherita Hack (ed.), Mass Loss from Stars. Proceedings of the Second Trieste Colloquium on
Astrophysics, 12-17 September, 1968. 1969, XII + 345 pp. 14. N. D'Angelo (ed.), Low-Frequency Waves and Irregularities in the Ionosphere. Proceedings of the
2nd ESRIN-ESLAB Symposium, held in Frascati,/taly, 23-27 September, 1968.1969, VII + 218 pp. 15. G. A. Partel (ed.), Space Engineering. Proceedings of the Second International Conference on Space
Engineering, held at the Fondazione Giorgio Cini, Isola di San Giorgio, Venice, Italy, May 7-10, 1969.1970, XI + 728 pp.
16. S. Fred Singer (ed.), Manned Laboratories in Space. Second International Orbital Laboratory Symposium. 1969, XIII + 133 pp.
17. B. M. McCormac (ed.), Particles and Fields in the Magnetosphere. Symposium Organized by the Summer Advanced Study Institute, held at the University of California, Santa Barbara, Cali/., August 4-15,1969.1970, XI+450pp.
18. Jean-Claude Peeker, Experimental Astronomy. 1970, X + 105 pp. 19. V. Manno and D. E. Page (eds.), Intercorrelated Satellite Observations related to Solar Evellts.
Proceedings of the Third ESLAB/ESRIN Symposium held in Noordwijk, The Netherlands, September 16-19, 1969. 1970, XVI + 627 pp.
20. L. Mansinha, D. E. Smylie, and A. E. Beek, Earthquake Displacement Field and the Rotation of the Earth. A NATO Advances Study Institute Conference Organized by the Department ofGeophysics, University of Western Ontario, London, Canada, June 22-28, 1969. 1970, XI + 308 pp.
21. Jean-Claude Peeker, Space Observatories. 1970, XI + 120 pp. 22. L. N. Mavridis (ed.), Structure and Evolution of the Galaxy, Proceedings of the NATO Advanced
Study Institute, held in Athens, September 8-19,1969. 1971, VII + 312 pp.
23. A. Muller (ed.), The Magellanic Clouds. A European Southern Observatory Presentation: Principal Prospects, Current Observational and Theoretical Approaches, and Prospects for Future Research. Based on the Symposium on the Magellanic Clouds, held in Santiago de Chile, March 1969, on the Occasion of the Dedication of the European Southern Observatory. 1971, XII + 189 pp.
24. B. M. McCormac (ed.), The Radiating Atmosphere. Proceedings of a Symposium Organized by the Summer Advanced Study Institute, held at Queen's University, Kingston, Ontario, August 3-14, 1970.1971, XI+455 pp.
25. G. Fiocco (ed.), Mesopheric Models and Related Experiments. Proceedings of the 4th ESRINESLAB Symposium held at Frascati, Italy, July 6-10,1970. 1971, VIII + 298 pp.
26. I. Atanasijevic, Selected Exercises in Galactic Astronomy. 1971, XII + 144 pp. 27. C. J. Macris (ed.), Physics of the Solar Corona. Proceedings of the NATO Advanced Study Institute
on Physics of the Solar Corona, held at Cavouri-Vouliagmeni, Athens, Greece, 6-17 September 1970. 1971, XII + 345 pp.
28. F. Delobeau, The Environment of the Earth. 1971, IX + 113 pp. 29. E. R. Dyer (general ed.), Solar-Terrestrial Physics 1970. Proceedings of the International Sympo
sium on Solar-Terrestrial Physics, held in Leningrad, U.S.S.R., 12-19 May 1970. 1972, VIII + 938 pp.
30. V. Manno and J. Ring (eds.), Infrared Detection Techniques for Space Research, Proceedings of the Fifth ESLAB-ESRIN Symposium, held in Noordwijk, The Netherlands, June 8-11,1971.1972, XII + 344 pp.
31. M. Lecar (ed.), Gravitational N-body Problem, Proceedings of IAU Colloquium No. 10, held in Cambridge, England, August 12-15,1970. 1972, XI + 441 pp.
32. B. M. McCormac (ed.), Earth's Magnetospheric Processes. Proceedings ofa Symposium Organized by the Summer Advanced Study Institute and Ninth ESRO Summer School, held in Cortina, Italy, August 30-September 10, 1971. 1972, VIII + 417 pp.
33. Antonin Riikl, Maps of Lunar Hemispheres. 1972, V +24 pp. 34. V. Kourganoff, Introduction to the Physics of Stellar Interiors. 1973, XI + 115 pp. 35. B. M. McCormac (ed.), Physics and Chemistry of Upper Atmospheres. Proceedings of Symposium
Organized by the Summer Advanced Study Institute, held at the University of Orleans, France, July 31-August 11, 1972. 1973, VIII + 389 pp.
36. J. D. Fernie (ed.), Variable Stars in Globular Clusters and in Related Systems. Proceedings of the IA U Colloquim No. 21, held at the University of Toronto, Toronto, Canada, August 29-31, 1972. 1973, IX+234 pp.
37. R. J. L. Grard (ed.), Photon and Particle Interaction with Surfaces in Space. Proceedings of the 6th ESLAB Symposium, held at Noordwijk, the Netherlands, 26-29 September, 1972. 1973, XV + 577 pp.
38. Werner Israel (ed.), Relativity, Astrophysics and Cosmology. Proceedings of the Summer School, held 14-26 August, 1972, at the BANFF Centre, BANFF, Alberta, Canada. 1973, IX + 323 pp.
39. B. D. Tapley and V. Szebehely (eds.), Recent Advances in Dynamical Astronomy. Proceedings of the NATO Advanced Study Institute in Dynamical Astronomy, held in Cortina d'Ampezzo, Italy, August 9-12, 1972. 1973, XIII + 468 pp.
40. A. G. W. Cameron (ed.), Cosmochemistry. Proceedings of the Symposium on Cosmochemistry, held at the Smithsonian Astrophysical Observatory, Cambridge, Mass., August 14-16, 1972. 1973, X+ 173 pp.
41. M. Golay, Introduction to Astronomical Photometry. 1974, IX+364 pp. 42. D. E. Page (ed.), Correlated Interplanetary and Magnetospheric Observations. Proceedings of the
Seventh ESLAB Symposium, held at Saulgau, W. GCflnany, 22-25 May, 1973. 1974, XIV + 662 pp. 43. Riccardo Giacconi and Herbert Gursky (eds.), X-Ray Astronomy. 1974, X + 450 pp. 44. B. M. McCormac (ed.), Magnetospheric Physics. Proceedir.gs of the Advanced Summer Institute,
held at Sheffield, U.K., August 1973. 1974, VII + 399 pp. 45. C. B. Cosmovici (ed.), Supernovae and Supernova Remnants. Proceedings of the International
Conference on Supernovae, held in Lecce, Italy, May 7-11, 1973. 1974, XVII + 387 pp.