cdbs kur ucz stellar a tmosphere a tlas · cdbs kur ucz stellar a tmosphere a tlas luis colina...

26

Upload: others

Post on 02-Aug-2020

1 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

CDBS KURUCZ STELLAR ATMOSPHERE ATLAS

Luis Colina (STScI/OSG)

Instrument Science report SCS/CAL-006

October 1995

1. INTRODUCTION

An updated version of Kurucz stellar atmospheres models is now in place in the CDBS

and will be available to users next November. This update supersedes the previous Buser-

Kurucz atlas installed in the CDBS in 1988. The new atlas covers a wider range in

metallicities and has a �ner grid in e�ective temperatures, gravities and wavelength.

The format, wavelength coverage, and extension of the atlas is useful for synthetic

photometry using SYNPHOT. The atlas can also be used in calculating WFPC2 and

NICMOS broad-band photometric transformations.

2. THE 1993 KURUCZ STELLAR ATMOSPHERES ATLAS

The atlas contains about 7600 stellar atmosphere models for a wide range of metallici-

ties, e�ective temperatures and gravities. These new LTE models have improved opacities

and are computed with a �ner wavelength and temperature resolution than the previous

Buser�Kurucz atlas installed in the CDBS. The microturbulent velocity is 2 km s�1.

The new atlas installed in the CDBS is from the Kurucz database at Goddard Space

Flight Center. The original atlas (CD-ROM No. 13) was created on August 22, 1993 and

can be obtained from Dr. R. Kurucz.

The atlas includes models of abundances (logZ) relative to solar of +1.0, +0.5, +0.3,

+0.2, +0.1, +0.0, �0.1, �0.2, �0.3, �0.5, �1.0, �1.5, �2.0, �2.5,�3.0, �3.5, �4.0, �4.5,

and �5.0. The grid of models cover the gravity range from logg= 0.0 to +5.0 in steps

of +0.5. The range in e�ective temperature from 3500 K to 50000 K is covered with an

uneven grid (see Table 1a). The model spectra cover the ultraviolet (1000�A) to infrared

(10�m) spectral range with non-uniform wavelength spacing (see Table 1b).

1

Page 2: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

3. THE STScI/CDBS VERSION OF THE 1993 KURUCZ ATLAS

The atlas is divided in 19 independent subdirectories, according to metallicity. Within

each subdirectory the stellar atmosphere models are given in STDAS multicolumn table

format. Each table consist of 12 di�erent columns, the �rst one containing the wavelength

grid and each of the rest containing the spectrum of a star with the same e�ective tem-

perature but di�erent gravity, ranging from logg= 0.0 to +5.0. Columns �lled with zeros

indicate that the model spectrum for that particular metallicity, e�ective temperature

and gravity combination is not covered by the atlas.

The names of the table �les are given as kszz ttttt.tab where k , for Kurucz, is the

�rst letter of the atlas; szz is the metallicity of the model (zz) with its sign (s); and ttttt

is the model's e�ective temperature, using four or �ve digits depending on the value.

For instance, models for an e�ective temperature of 5000 K with logZ= �0.5 and logZ=

+3.5 are indicated by ttttt= 5000, s= m, zz= 05 and ttttt= 5000, s= p, zz= 35, i.e.

km05 5000.tab and kp35 5000.tab.

Within each individual table �le, each column is named gyy where yy corresponds to

10�logg. For example, logg= +0.5 and logg= +4.0 models are located in columns named

g05 and g40, respectively. See the appendix for an example of a standard header of a

table �le.

Physical uxes of the spectra are given in FLAM surface ux units, i.e. ergs cm�2

s�1 �A�1. These ux units di�er from those in the Kurucz CD-ROM by a factor of

3.336�10�19 � �2 � (4�)�1, i.e. are converted from ergs cm�2 s�1 Hz�1 steradian�1 to

ergs cm�2 s�1 �A�1. To convert to observed ux at Earth, multiply by a factor of (R/D)2

where R is the stellar radius, and D is the distance to Earth.

The names of the �les located in each metallicity subdirectory are listed in Tables 3

to 21. The range in gravity covered by the models for the di�erent temperatures is also

indicated. A list of solar metallicity stars of di�erent spectral types and luminosity classes

together with their closest Kurucz model spectrum is presented in Table 22. The physical

parameters, Teff and logg, characterizing each star are taken from Schmidt-Kaler's com-

pilation of physical parameters of stars (Schmidt-Kaler 1982, Landolt-B�ornstein VI/2b).

The U�B and B�V colors of the closest model agree with the characteristic color of each

star (see Schmidt-Kaler 1982) to better than 0.06 magnitude.

Since the entire atlas occupies close to 70MB of disk space, many applications could

be satis�ed by a copy of the solar metallicity spectra, only.

2

Page 3: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

4. THE SPECTRUM OF THE SUN AND VEGA

Vega and the Sun are the primary basic standards for absolute spectrophotometric

calibrations at optical and infrared wavelengths, respectively. As an independent part of

the atlas, the absolute calibrated spectra of the Sun and Vega are also provided. The

physical parameters used by Kurucz in the modeling of the Sun and Vega can be found

in Table 2.

The absolute calibration for Vega is obtained by normalizing the surface ux of the

Kurucz spectrum at �5000�A to 4.65 � 10�9 ergs cm�2 s�1 �A�1 (see Colina & Bohlin

1994, Astron. J., 108, 1931 for details on the selection of this normalization). Vega has a

visual magnitude VJohnson= +0.035, in the Johnson system (see Colina & Bohlin 1994 for

details). This new spectrum is now used by SYNPHOT whenever the vegamag option is

required.

As for Vega, the absolute calibration of the Sun's spectrum is obtained by normalizing

the surface ux at �5000�A to an absolute ux of 1.8835 � 102 ergs cm�2 s�1 �A�1. This

value is obtained by taking the average of Neckel & Labs absolute ux calibrated spectrum

of the Sun between �4985�A and �5015�A (Neckel & Labs 1984, Solar Physics 90, 205).

With this normalization, the Johnson visual magnitude of the Sun corresponds to

VJohnson= �-26.76, assuming Vega has a VJohnson magnitude of +0.035. The V magnitude

of the Sun obtained in this way is in excellent agreement with the V magnitude measured

by Campins and collaborators, V= �26.762 � 0.017 (Campins et al. 1985, Astron. J.,

90, 896).

STSDAS table versions of the absolute calibrated model spectra, named sun.tab and

vega.tab, can be found in the CDBS directory crgridk93$standards.

5. USE OF KURUCZ ATLAS WITH SYNPHOT

Synphot tasks now permit the use of spectra selected from one of many columns in

a single STSDAS table �le. One does this by specifying as the "spectrum" parameter

the name of the disk �le (as before), and appending the name of the column contain-

ing the ux in brackets. Thus, to select any model spectrum characterized by a given

metallicity, e�ective temperature, and gravity, specify a "spectrum" of the form: cr-

gridk93$m directory/kszz ttttt.tab[gyy], where m directory is the name of the subdirec-

tory for a given metallicity. For example, to select the spectrum of a star with a metallicity

of +0.1, a temperature of 10,000 K, and log gravity of 3.0, the speci�cation would be:

crgridk93$kp01/kp01 10000.tab[g30].

3

Page 4: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

Please note that the model spectra in the atlas are in surface ux units. Thus, if the

number of counts or the calculated absolute ux is needed, the model spectrum must be

renormalized appropriately. One can do this in synphot with the "rn" function.

An enhancement to synphot is planned for the near term that will allow a model

spectrum to be selected within a synphot expression, using a special operator. The syntax

will be something like "cat(kurucz,t,g,m)" where "t" is the e�ective temperature, "g" is

the log gravity, and "m" is the log metallicity in solar units. The idea is that, instead

of having to remember a directory/�le naming syntax, a synphot user could specify a

spectrum from a speci�ed catalog (the Kurucz atlas, in this case) which most closely

matches the speci�ed attributes (in this case, Teff , log g, and log Z) using an expression.

The on-line help and the Synphot User's Guide will be updated when this feature is

available.

6. WWW ACCESS TO KURUCZ ATLAS

The Kurucz atlas is accessible via the WWW pages of the Observatory Support Branch

(http://www.stsci.edu/ftp/cdbs/grid/k93models). STSDAS table �les of the model spec-

tra as well as short ASCII explanatory �les (READ �les) are included for easy access.

Acknowledgements

The author thanks R. Kurucz for making available the models, and W. Landsman for

helping with the extraction of the reformated models from the IDL Astronomy Library

and UIT database. Also thanks to Ralph Bohlin and Dick Shaw for their useful comments

and suggestions.

4

Page 5: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

APPENDIX

Below is an example of a standard header for the table �les in the CDBS version of

Kurucz atlas. In this example the name of the �le is kp00 8000.tab and contains all the

models for a star of metallicity logZ= 0.0 and e�ective temperature Teff= 8000 K. Models

cover a range of gravities from logg= +1.0 (g10 in the header) to logg= +5.0 (g50 in the

header). Models for gravities logg= +0.0 and +0.5 are not available for this particualr

metallicity and e�ective temperature combination, and therefore do not appear listed in

the header. Their corresponding columns (g00 and g05) are �lled with zeros. The models

are in FLAM surface ux units, i.e. ergs cm�2 s�1 �A�1.

Header for table �le kp00 8000.tab

1 TEFF i 8000

2 LOG Z d 0.0000000000000000

3 HISTORY t g10

4 HISTORY t g15

5 HISTORY t g20

6 HISTORY t g25

7 HISTORY t g30

8 HISTORY t g35

9 HISTORY t g40

10 HISTORY t g45

11 HISTORY t g50

12 HISTORY t

13 HISTORY t Kurucz model atmospheres (1993)

14 HISTORY t

15 HISTORY t Fluxes tabulated in units of erg s�1 cm�2�A�1

16 HISTORY t are surface uxes. To transform to observed

17 HISTORY t uxes multiply by (R/D)2 where R is the

18 HISTORY t radius of the star and D the distance.

19 HISTORY t Each column in the table represents the

20 HISTORY t spectrum of a star for the same metallicity

21 HISTORY t and e�ective temperature but di�erent gravity.

5

Page 6: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 1a: Grid of temperatures for the models

Temperature Range Grid StepK K

3000 � 10000 25010000 � 13000 50013000 � 35000 100035000 � 50000 2500

TABLE 1b: Wavelength coverage for the models

Wavelength Range Grid Step

�m �A0.10 � 0.29 100.29 � 1.00 201.00 � 1.60 501.60 � 3.20 1003.20 � 8.35 2008.35 � 10.0 400

TABLE 2: Sun and Vega models: parameters

Star logZ Teff logg VJohnson

KSUN +0.0 5777 +4.44 �26.76VEGA �0.5 9550 +3.95 +0.035

6

Page 7: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 3: Kurucz stellar atmosphere models for logZ= +1.0

File Name Gravity Range File Name Gravity Range

kp10 3500 g00 to g50 kp10 12500 g30 to g50kp10 3750 g00 to g50 kp10 13000 g30 to g50kp10 4000 g00 to g50 kp10 14000 g30 to g50kp10 4250 g00 to g50 kp10 15000 g30 to g50kp10 4500 g00 to g50 kp10 16000 g30 to g50kp10 4750 g00 to g50 kp10 17000 g30 to g50kp10 5000 g00 to g50 kp10 18000 g30 to g50kp10 5250 g00 to g50 kp10 19000 g30 to g50kp10 5500 g00 to g50 kp10 20000 g30 to g50kp10 5750 g00 to g50 kp10 21000 g30 to g50kp10 6000 g05 to g50 kp10 22000 g35 to g50kp10 6250 g05 to g50 kp10 23000 g35 to g50kp10 6500 g05 to g50 kp10 24000 g35 to g50kp10 6750 g05 to g50 kp10 25000 g35 to g50kp10 7000 g05 to g50 kp10 26000 g35 to g50kp10 7250 g05 to g50 kp10 27000 g35 to g50kp10 7500 g10 to g50 kp10 28000 g40 to g50kp10 7750 g10 to g50 kp10 29000 g40 to g50kp10 8000 g10 to g50 kp10 30000 g40 to g50kp10 8250 g10 to g50 kp10 31000 g40 to g50kp10 8500 g15 to g50 kp10 32000 g45 to g50kp10 8750 g15 to g50 kp10 33000 g45 to g50kp10 9000 g20 to g50 kp10 34000 g45 to g50kp10 9250 g20 to g50 kp10 35000 g45 to g50kp10 9500 g20 to g50 kp10 37500 g50kp10 9750 g20 to g50 kp10 40000 g50kp10 10000 g20 to g50kp10 10500 g25 to g50kp10 11000 g25 to g50kp10 11500 g30 to g50kp10 12000 g30 to g50

7

Page 8: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 4: Kurucz stellar atmosphere models for logZ= +0.5

File Name Gravity Range File Name Gravity Range

kp05 3500 g00 to g50 kp05 12500 g25 to g50kp05 3750 g00 to g50 kp05 13000 g25 to g50kp05 4000 g00 to g50 kp05 14000 g25 to g50kp05 4250 g00 to g50 kp05 15000 g25 to g50kp05 4500 g00 to g50 kp05 16000 g25 to g50kp05 4750 g00 to g50 kp05 17000 g25 to g50kp05 5000 g00 to g50 kp05 18000 g30 to g50kp05 5250 g00 to g50 kp05 19000 g30 to g50kp05 5500 g00 to g50 kp05 20000 g30 to g50kp05 5750 g00 to g50 kp05 21000 g30 to g50kp05 6000 g00 to g50 kp05 22000 g30 to g50kp05 6250 g05 to g50 kp05 23000 g30 to g50kp05 6500 g05 to g50 kp05 24000 g30 to g50kp05 6750 g05 to g50 kp05 25000 g30 to g50kp05 7000 g05 to g50 kp05 26000 g35 to g50kp05 7250 g10 to g50 kp05 27000 g35 to g50kp05 7500 g10 to g50 kp05 28000 g35 to g50kp05 7750 g10 to g50 kp05 29000 g35 to g50kp05 8000 g10 to g50 kp05 30000 g40 to g50kp05 8250 g10 to g50 kp05 31000 g40 to g50kp05 8500 g15 to g50 kp05 32000 g40 to g50kp05 8750 g15 to g50 kp05 33000 g40 to g50kp05 9000 g15 to g50 kp05 34000 g45 to g50kp05 9250 g20 to g50 kp05 35000 g45 to g50kp05 9500 g20 to g50 kp05 37500 g45 to g50kp05 9750 g20 to g50 kp05 40000 g50kp05 10000 g20 to g50 kp05 42500 g50kp05 10500 g20 to g50 kp05 45000 g50kp05 11000 g25 to g50kp05 11500 g25 to g50kp05 12000 g25 to g50

8

Page 9: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 5: Kurucz stellar atmosphere models for logZ= +0.3

File Name Gravity Range File Name Gravity Range

kp03 3500 g00 to g50 kp03 12500 g25 to g50kp03 3750 g00 to g50 kp03 13000 g25 to g50kp03 4000 g00 to g50 kp03 14000 g25 to g50kp03 4250 g00 to g50 kp03 15000 g25 to g50kp03 4500 g00 to g50 kp03 16000 g25 to g50kp03 4750 g00 to g50 kp03 17000 g25 to g50kp03 5000 g00 to g50 kp03 18000 g25 to g50kp03 5250 g00 to g50 kp03 19000 g30 to g50kp03 5500 g00 to g50 kp03 20000 g30 to g50kp03 5750 g00 to g50 kp03 21000 g30 to g50kp03 6000 g00 to g50 kp03 22000 g30 to g50kp03 6250 g05 to g50 kp03 23000 g30 to g50kp03 6500 g05 to g50 kp03 24000 g30 to g50kp03 6750 g05 to g50 kp03 25000 g30 to g50kp03 7000 g05 to g50 kp03 26000 g35 to g50kp03 7250 g05 to g50 kp03 27000 g35 to g50kp03 7500 g10 to g50 kp03 28000 g35 to g50kp03 7750 g10 to g50 kp03 29000 g35 to g50kp03 8000 g10 to g50 kp03 30000 g35 to g50kp03 8250 g10 to g50 kp03 31000 g40 to g50kp03 8500 g10 to g50 kp03 32000 g40 to g50kp03 8750 g15 to g50 kp03 33000 g40 to g50kp03 9000 g15 to g50 kp03 34000 g40 to g50kp03 9250 g20 to g50 kp03 35000 g45 to g50kp03 9500 g20 to g50 kp03 37500 g45 to g50kp03 9750 g20 to g50 kp03 40000 g45 to g50kp03 10000 g20 to g50 kp03 42500 g50kp03 10500 g20 to g50 kp03 45000 g50kp03 11000 g25 to g50 kp03 47500 g50kp03 11500 g25 to g50 kp03 50000 g50kp03 12000 g25 to g50

9

Page 10: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 6: Kurucz stellar atmosphere models for logZ= +0.2

File Name Gravity Range File Name Gravity Range

kp02 3500 g00 to g50 kp02 12500 g25 to g50kp02 3750 g00 to g50 kp02 13000 g25 to g50kp02 4000 g00 to g50 kp02 14000 g25 to g50kp02 4250 g00 to g50 kp02 15000 g25 to g50kp02 4500 g00 to g50 kp02 16000 g25 to g50kp02 4750 g00 to g50 kp02 17000 g25 to g50kp02 5000 g00 to g50 kp02 18000 g25 to g50kp02 5250 g00 to g50 kp02 19000 g25 to g50kp02 5500 g00 to g50 kp02 20000 g30 to g50kp02 5750 g00 to g50 kp02 21000 g30 to g50kp02 6000 g00 to g50 kp02 22000 g30 to g50kp02 6250 g05 to g50 kp02 23000 g30 to g50kp02 6500 g05 to g50 kp02 24000 g30 to g50kp02 6750 g05 to g50 kp02 25000 g30 to g50kp02 7000 g05 to g50 kp02 26000 g35 to g50kp02 7250 g05 to g50 kp02 27000 g35 to g50kp02 7500 g05 to g50 kp02 28000 g35 to g50kp02 7750 g10 to g50 kp02 29000 g35 to g50kp02 8000 g10 to g50 kp02 30000 g35 to g50kp02 8250 g10 to g50 kp02 31000 g40 to g50kp02 8500 g10 to g50 kp02 32000 g40 to g50kp02 8750 g15 to g50 kp02 33000 g40 to g50kp02 9000 g15 to g50 kp02 34000 g40 to g50kp02 9250 g20 to g50 kp02 35000 g40 to g50kp02 9500 g20 to g50 kp02 37500 g45 to g50kp02 9750 g20 to g50 kp02 40000 g45 to g50kp02 10000 g20 to g50 kp02 42500 g50kp02 10500 g20 to g50 kp02 45000 g50kp02 11000 g25 to g50 kp02 47500 g50kp02 11500 g25 to g50 kp02 50000 g50kp02 12000 g25 to g50

10

Page 11: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 7: Kurucz stellar atmosphere models for logZ= +0.1

File Name Gravity Range File Name Gravity Range

kp01 3500 g00 to g50 kp01 12500 g25 to g50kp01 3750 g00 to g50 kp01 13000 g25 to g50kp01 4000 g00 to g50 kp01 14000 g20 to g50kp01 4250 g00 to g50 kp01 15000 g25 to g50kp01 4500 g00 to g50 kp01 16000 g25 to g50kp01 4750 g00 to g50 kp01 17000 g25 to g50kp01 5000 g00 to g50 kp01 18000 g25 to g50kp01 5250 g00 to g50 kp01 19000 g25 to g50kp01 5500 g00 to g50 kp01 20000 g30 to g50kp01 5750 g00 to g50 kp01 21000 g30 to g50kp01 6000 g00 to g50 kp01 22000 g30 to g50kp01 6250 g05 to g50 kp01 23000 g30 to g50kp01 6500 g05 to g50 kp01 24000 g30 to g50kp01 6750 g05 to g50 kp01 25000 g30 to g50kp01 7000 g05 to g50 kp01 26000 g30 to g50kp01 7250 g05 to g50 kp01 27000 g35 to g50kp01 7500 g05 to g50 kp01 28000 g35 to g50kp01 7750 g10 to g50 kp01 29000 g35 to g50kp01 8000 g10 to g50 kp01 30000 g35 to g50kp01 8250 g10 to g50 kp01 31000 g35 to g50kp01 8500 g10 to g50 kp01 32000 g40 to g50kp01 8750 g15 to g50 kp01 33000 g40 to g50kp01 9000 g15 to g50 kp01 34000 g40 to g50kp01 9250 g20 to g50 kp01 35000 g40 to g50kp01 9500 g20 to g50 kp01 37500 g45 to g50kp01 9750 g20 to g50 kp01 40000 g45 to g50kp01 10000 g20 to g50 kp01 42500 g50kp01 10500 g20 to g50 kp01 45000 g50kp01 11000 g20 to g50 kp01 47500 g50kp01 11500 g25 to g50 kp01 50000 g50kp01 12000 g25 to g50

11

Page 12: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 8: Kurucz stellar atmosphere models for logZ= +0.0

File Name Gravity Range File Name Gravity Range

kp00 3500 g00 to g50 kp00 12500 g25 to g50kp00 3750 g00 to g50 kp00 13000 g25 to g50kp00 4000 g00 to g50 kp00 14000 g20 to g50kp00 4250 g00 to g50 kp00 15000 g25 to g50kp00 4500 g00 to g50 kp00 16000 g25 to g50kp00 4750 g00 to g50 kp00 17000 g25 to g50kp00 5000 g00 to g50 kp00 18000 g25 to g50kp00 5250 g00 to g50 kp00 19000 g25 to g50kp00 5500 g00 to g50 kp00 20000 g30 to g50kp00 5750 g00 to g50 kp00 21000 g30 to g50kp00 6000 g00 to g50 kp00 22000 g30 to g50kp00 6250 g05 to g50 kp00 23000 g30 to g50kp00 6500 g05 to g50 kp00 24000 g30 to g50kp00 6750 g05 to g50 kp00 25000 g30 to g50kp00 7000 g05 to g50 kp00 26000 g30 to g50kp00 7250 g05 to g50 kp00 27000 g35 to g50kp00 7500 g05 to g50 kp00 28000 g35 to g50kp00 7750 g10 to g50 kp00 29000 g35 to g50kp00 8000 g10 to g50 kp00 30000 g35 to g50kp00 8250 g10 to g50 kp00 31000 g35 to g50kp00 8500 g15 to g50 kp00 32000 g40 to g50kp00 8750 g15 to g50 kp00 33000 g40 to g50kp00 9000 g15 to g50 kp00 34000 g40 to g50kp00 9250 g20 to g50 kp00 35000 g40 to g50kp00 9500 g20 to g50 kp00 37500 g45 to g50kp00 9750 g20 to g50 kp00 40000 g45 to g50kp00 10000 g20 to g50 kp00 42500 g50kp00 10500 g20 to g50 kp00 45000 g50kp00 11000 g25 to g50 kp00 47500 g50kp00 11500 g25 to g50 kp00 50000 g50kp00 12000 g25 to g50

12

Page 13: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 9: Kurucz stellar atmosphere models for logZ= �0.1

File Name Gravity Range File Name Gravity Range

km01 3500 g00 to g50 km01 12500 g25 to g50km01 3750 g00 to g50 km01 13000 g25 to g50km01 4000 g00 to g50 km01 14000 g20 to g50km01 4250 g00 to g50 km01 15000 g25 to g50km01 4500 g00 to g50 km01 16000 g25 to g50km01 4750 g00 to g50 km01 17000 g25 to g50km01 5000 g00 to g50 km01 18000 g25 to g50km01 5250 g00 to g50 km01 19000 g25 to g50km01 5500 g00 to g50 km01 20000 g30 to g50km01 5750 g00 to g50 km01 21000 g30 to g50km01 6000 g00 to g50 km01 22000 g30 to g50km01 6250 g05 to g50 km01 23000 g30 to g50km01 6500 g05 to g50 km01 24000 g30 to g50km01 6750 g05 to g50 km01 25000 g30 to g50km01 7000 g05 to g50 km01 26000 g30 to g50km01 7250 g05 to g50 km01 27000 g35 to g50km01 7500 g05 to g50 km01 28000 g35 to g50km01 7750 g10 to g50 km01 29000 g35 to g50km01 8000 g10 to g50 km01 30000 g35 to g50km01 8250 g10 to g50 km01 31000 g35 to g50km01 8500 g10 to g50 km01 32000 g40 to g50km01 8750 g15 to g50 km01 33000 g40 to g50km01 9000 g15 to g50 km01 34000 g40 to g50km01 9250 g20 to g50 km01 35000 g40 to g50km01 9500 g20 to g50 km01 37500 g45 to g50km01 9750 g20 to g50 km01 40000 g45 to g50km01 10000 g20 to g50 km01 42500 g50km01 10500 g20 to g50 km01 45000 g50km01 11000 g25 to g50 km01 47500 g50km01 11500 g25 to g50 km01 50000 g50km01 12000 g25 to g50

13

Page 14: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 10: Kurucz stellar atmosphere models for logZ= �0.2

File Name Gravity Range File Name Gravity Range

km02 3500 g00 to g50 km02 12500 g25 to g50km02 3750 g00 to g50 km02 13000 g25 to g50km02 4000 g00 to g50 km02 14000 g20 to g50km02 4250 g00 to g50 km02 15000 g25 to g50km02 4500 g00 to g50 km02 16000 g25 to g50km02 4750 g00 to g50 km02 17000 g25 to g50km02 5000 g00 to g50 km02 18000 g25 to g50km02 5250 g00 to g50 km02 19000 g25 to g50km02 5500 g00 to g50 km02 20000 g30 to g50km02 5750 g00 to g50 km02 21000 g30 to g50km02 6000 g00 to g50 km02 22000 g30 to g50km02 6250 g05 to g50 km02 23000 g30 to g50km02 6500 g05 to g50 km02 24000 g30 to g50km02 6750 g05 to g50 km02 25000 g30 to g50km02 7000 g05 to g50 km02 26000 g30 to g50km02 7250 g05 to g50 km02 27000 g35 to g50km02 7500 g05 to g50 km02 28000 g35 to g50km02 7750 g10 to g50 km02 29000 g35 to g50km02 8000 g10 to g50 km02 30000 g35 to g50km02 8250 g10 to g50 km02 31000 g35 to g50km02 8500 g10 to g50 km02 32000 g40 to g50km02 8750 g15 to g50 km02 33000 g40 to g50km02 9000 g15 to g50 km02 34000 g40 to g50km02 9250 g20 to g50 km02 35000 g40 to g50km02 9500 g20 to g50 km02 37500 g45 to g50km02 9750 g20 to g50 km02 40000 g45 to g50km02 10000 g20 to g50 km02 42500 g50km02 10500 g20 to g50 km02 45000 g50km02 11000 g25 to g50 km02 47500 g50km02 11500 g25 to g50 km02 50000 g50km02 12000 g25 to g50

14

Page 15: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 11: Kurucz stellar atmosphere models for logZ= �0.3

File Name Gravity Range File Name Gravity Range

km03 3500 g00 to g50 km03 12500 g25 to g50km03 3750 g00 to g50 km03 13000 g25 to g50km03 4000 g00 to g50 km03 14000 g20 to g50km03 4250 g00 to g50 km03 15000 g25 to g50km03 4500 g00 to g50 km03 16000 g25 to g50km03 4750 g00 to g50 km03 17000 g25 to g50km03 5000 g00 to g50 km03 18000 g25 to g50km03 5250 g00 to g50 km03 19000 g25 to g50km03 5500 g00 to g50 km03 20000 g30 to g50km03 5750 g00 to g50 km03 21000 g30 to g50km03 6000 g00 to g50 km03 22000 g30 to g50km03 6250 g05 to g50 km03 23000 g30 to g50km03 6500 g05 to g50 km03 24000 g30 to g50km03 6750 g05 to g50 km03 25000 g30 to g50km03 7000 g05 to g50 km03 26000 g30 to g50km03 7250 g05 to g50 km03 27000 g35 to g50km03 7500 g05 to g50 km03 28000 g35 to g50km03 7750 g10 to g50 km03 29000 g35 to g50km03 8000 g10 to g50 km03 30000 g35 to g50km03 8250 g10 to g50 km03 31000 g35 to g50km03 8500 g10 to g50 km03 32000 g40 to g50km03 8750 g15 to g50 km03 33000 g40 to g50km03 9000 g15 to g50 km03 34000 g40 to g50km03 9250 g20 to g50 km03 35000 g40 to g50km03 9500 g20 to g50 km03 37500 g45 to g50km03 9750 g20 to g50 km03 40000 g45 to g50km03 10000 g20 to g50 km03 42500 g50km03 10500 g20 to g50 km03 45000 g50km03 11000 g25 to g50 km03 47500 g50km03 11500 g25 to g50 km03 50000 g50km03 12000 g25 to g50

15

Page 16: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 12: Kurucz stellar atmosphere models for logZ= �0.5

File Name Gravity Range File Name Gravity Range

km05 3500 g00 to g50 km05 12500 g25 to g50km05 3750 g00 to g50 km05 13000 g25 to g50km05 4000 g00 to g50 km05 14000 g20 to g50km05 4250 g00 to g50 km05 15000 g25 to g50km05 4500 g00 to g50 km05 16000 g25 to g50km05 4750 g00 to g50 km05 17000 g25 to g50km05 5000 g00 to g50 km05 18000 g25 to g50km05 5250 g00 to g50 km05 19000 g25 to g50km05 5500 g00 to g50 km05 20000 g30 to g50km05 5750 g00 to g50 km05 21000 g30 to g50km05 6000 g00 to g50 km05 22000 g30 to g50km05 6250 g05 to g50 km05 23000 g30 to g50km05 6500 g05 to g50 km05 24000 g30 to g50km05 6750 g05 to g50 km05 25000 g30 to g50km05 7000 g05 to g50 km05 26000 g30 to g50km05 7250 g05 to g50 km05 27000 g35 to g50km05 7500 g05 to g50 km05 28000 g35 to g50km05 7750 g10 to g50 km05 29000 g35 to g50km05 8000 g10 to g50 km05 30000 g35 to g50km05 8250 g10 to g50 km05 31000 g35 to g50km05 8500 g10 to g50 km05 32000 g40 to g50km05 8750 g15 to g50 km05 33000 g40 to g50km05 9000 g15 to g50 km05 34000 g40 to g50km05 9250 g20 to g50 km05 35000 g40 to g50km05 9500 g20 to g50 km05 37500 g45 to g50km05 9750 g20 to g50 km05 40000 g45 to g50km05 10000 g20 to g50 km05 42500 g50km05 10500 g20 to g50 km05 45000 g50km05 11000 g25 to g50 km05 47500 g50km05 11500 g25 to g50 km05 50000 g50km05 12000 g25 to g50

16

Page 17: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 13: Kurucz stellar atmosphere models for logZ= �1.0

File Name Gravity Range File Name Gravity Range

km10 3500 g00 to g50 km10 12500 g25 to g50km10 3750 g00 to g50 km10 13000 g25 to g50km10 4000 g00 to g50 km10 14000 g20 to g50km10 4250 g00 to g50 km10 15000 g25 to g50km10 4500 g00 to g50 km10 16000 g25 to g50km10 4750 g00 to g50 km10 17000 g25 to g50km10 5000 g00 to g50 km10 18000 g25 to g50km10 5250 g00 to g50 km10 19000 g25 to g50km10 5500 g00 to g50 km10 20000 g30 to g50km10 5750 g00 to g50 km10 21000 g30 to g50km10 6000 g00 to g50 km10 22000 g30 to g50km10 6250 g05 to g50 km10 23000 g30 to g50km10 6500 g05 to g50 km10 24000 g30 to g50km10 6750 g05 to g50 km10 25000 g30 to g50km10 7000 g05 to g50 km10 26000 g30 to g50km10 7250 g05 to g50 km10 27000 g35 to g50km10 7500 g05 to g50 km10 28000 g35 to g50km10 7750 g10 to g50 km10 29000 g35 to g50km10 8000 g10 to g50 km10 30000 g35 to g50km10 8250 g10 to g50 km10 31000 g35 to g50km10 8500 g15 to g50 km10 32000 g40 to g50km10 8750 g15 to g50 km10 33000 g40 to g50km10 9000 g15 to g50 km10 34000 g40 to g50km10 9250 g20 to g50 km10 35000 g40 to g50km10 9500 g20 to g50 km10 37500 g45 to g50km10 9750 g20 to g50 km10 40000 g45 to g50km10 10000 g20 to g50 km10 42500 g50km10 10500 g20 to g50 km10 45000 g50km10 11000 g25 to g50 km10 47500 g50km10 11500 g25 to g50 km10 50000 g50km10 12000 g25 to g50

17

Page 18: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 14: Kurucz stellar atmosphere models for logZ= �1.5

File Name Gravity Range File Name Gravity Range

km15 3500 g00 to g50 km15 12500 g25 to g50km15 3750 g00 to g50 km15 13000 g25 to g50km15 4000 g00 to g50 km15 14000 g20 to g50km15 4250 g00 to g50 km15 15000 g25 to g50km15 4500 g00 to g50 km15 16000 g25 to g50km15 4750 g00 to g50 km15 17000 g25 to g50km15 5000 g00 to g50 km15 18000 g25 to g50km15 5250 g00 to g50 km15 19000 g25 to g50km15 5500 g00 to g50 km15 20000 g30 to g50km15 5750 g00 to g50 km15 21000 g30 to g50km15 6000 g00 to g50 km15 22000 g30 to g50km15 6250 g05 to g50 km15 23000 g30 to g50km15 6500 g05 to g50 km15 24000 g30 to g50km15 6750 g05 to g50 km15 25000 g30 to g50km15 7000 g05 to g50 km15 26000 g30 to g50km15 7250 g05 to g50 km15 27000 g35 to g50km15 7500 g05 to g50 km15 28000 g35 to g50km15 7750 g10 to g50 km15 29000 g35 to g50km15 8000 g10 to g50 km15 30000 g35 to g50km15 8250 g15 to g50 km15 31000 g35 to g50km15 8500 g15 to g50 km15 32000 g40 to g50km15 8750 g20 to g50 km15 33000 g40 to g50km15 9000 g20 to g50 km15 34000 g40 to g50km15 9250 g20 to g50 km15 35000 g40 to g50km15 9500 g20 to g50 km15 37500 g45 to g50km15 9750 g20 to g50 km15 40000 g45 to g50km15 10000 g20 to g50 km15 42500 g50km15 10500 g20 to g50 km15 45000 g50km15 11000 g25 to g50 km15 47500 g50km15 11500 g25 to g50 km15 50000 g50km15 12000 g25 to g50

18

Page 19: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 15: Kurucz stellar atmosphere models for logZ= �2.0

File Name Gravity Range File Name Gravity Range

km20 3500 g00 to g50 km20 12500 g25 to g50km20 3750 g00 to g50 km20 13000 g25 to g50km20 4000 g00 to g50 km20 14000 g20 to g50km20 4250 g00 to g50 km20 15000 g25 to g50km20 4500 g00 to g50 km20 16000 g25 to g50km20 4750 g00 to g50 km20 17000 g25 to g50km20 5000 g00 to g50 km20 18000 g25 to g50km20 5250 g00 to g50 km20 19000 g25 to g50km20 5500 g00 to g50 km20 20000 g30 to g50km20 5750 g00 to g50 km20 21000 g30 to g50km20 6000 g00 to g50 km20 22000 g30 to g50km20 6250 g05 to g50 km20 23000 g30 to g50km20 6500 g05 to g50 km20 24000 g30 to g50km20 6750 g05 to g50 km20 25000 g30 to g50km20 7000 g05 to g50 km20 26000 g30 to g50km20 7250 g05 to g50 km20 27000 g35 to g50km20 7500 g05 to g50 km20 28000 g35 to g50km20 7750 g10 to g50 km20 29000 g35 to g50km20 8000 g10 to g50 km20 30000 g40 to g50km20 8250 g15 to g50 km20 31000 g40 to g50km20 8500 g15 to g50 km20 32000 g40 to g50km20 8750 g20 to g50 km20 33000 g45 to g50km20 9000 g20 to g50 km20 34000 g45 to g50km20 9250 g20 to g50 km20 35000 g45 to g50km20 9500 g20 to g50 km20 37500 g45 to g50km20 9750 g20 to g50 km20 40000 g45 to g50km20 10000 g20 to g50 km20 42500 g50km20 10500 g20 to g50 km20 45000 g50km20 11000 g25 to g50 km20 47500 g50km20 11500 g25 to g50 km20 50000 g50km20 12000 g25 to g50

19

Page 20: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 16: Kurucz stellar atmosphere models for logZ= �2.5

File Name Gravity Range File Name Gravity Range

km25 3500 g00 to g40 km25 12500 g25 to g50km25 3750 g00 to g45 km25 13000 g25 to g50km25 4000 g00 to g45 km25 14000 g20 to g50km25 4250 g00 to g50 km25 15000 g25 to g50km25 4500 g00 to g50 km25 16000 g25 to g50km25 4750 g00 to g50 km25 17000 g25 to g50km25 5000 g00 to g50 km25 18000 g25 to g50km25 5250 g00 to g50 km25 19000 g25 to g50km25 5500 g00 to g50 km25 20000 g30 to g50km25 5750 g00 to g50 km25 21000 g30 to g50km25 6000 g00 to g50 km25 22000 g30 to g50km25 6250 g05 to g50 km25 23000 g30 to g50km25 6500 g05 to g50 km25 24000 g30 to g50km25 6750 g05 to g50 km25 25000 g30 to g50km25 7000 g05 to g50 km25 26000 g30 to g50km25 7250 g05 to g50 km25 27000 g35 to g50km25 7500 g05 to g50 km25 28000 g35 to g50km25 7750 g10 to g50 km25 29000 g35 to g50km25 8000 g15 to g50 km25 30000 g35 to g50km25 8250 g15 to g50 km25 31000 g35 to g50km25 8500 g15 to g50 km25 32000 g40 to g50km25 8750 g20 to g50 km25 33000 g40 to g50km25 9000 g20 to g50 km25 34000 g40 to g50km25 9250 g20 to g50 km25 35000 g40 to g50km25 9500 g20 to g50 km25 37500 g45 to g50km25 9750 g20 to g50 km25 40000 g45 to g50km25 10000 g20 to g50 km25 42500 g50km25 10500 g20 to g50 km25 45000 g50km25 11000 g25 to g50 km25 47500 g50km25 11500 g25 to g50 km25 50000 g50km25 12000 g25 to g50

20

Page 21: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 17: Kurucz stellar atmosphere models for logZ= �3.0

File Name Gravity Range File Name Gravity Range

km30 3500 g00 to g40 km30 12500 g25 to g50km30 3750 g00 to g40 km30 13000 g25 to g50km30 4000 g00 to g45 km30 14000 g20 to g50km30 4250 g00 to g50 km30 15000 g25 to g50km30 4500 g00 to g50 km30 16000 g25 to g50km30 4750 g00 to g50 km30 17000 g25 to g50km30 5000 g00 to g50 km30 18000 g25 to g50km30 5250 g00 to g50 km30 19000 g25 to g50km30 5500 g00 to g50 km30 20000 g30 to g50km30 5750 g00 to g50 km30 21000 g30 to g50km30 6000 g00 to g50 km30 22000 g30 to g50km30 6250 g05 to g50 km30 23000 g30 to g50km30 6500 g05 to g50 km30 24000 g30 to g50km30 6750 g05 to g50 km30 25000 g30 to g50km30 7000 g05 to g50 km30 26000 g30 to g50km30 7250 g05 to g50 km30 27000 g30 to g50km30 7500 g10 to g50 km30 28000 g35 to g50km30 7750 g15 to g50 km30 29000 g35 to g50km30 8000 g15 to g50 km30 30000 g35 to g50km30 8250 g15 to g50 km30 31000 g35 to g50km30 8500 g15 to g50 km30 32000 g40 to g50km30 8750 g20 to g50 km30 33000 g40 to g50km30 9000 g15 to g50 km30 34000 g40 to g50km30 9250 g20 to g50 km30 35000 g40 to g50km30 9500 g20 to g50 km30 37500 g45 to g50km30 9750 g20 to g50 km30 40000 g45 to g50km30 10000 g20 to g50 km30 42500 g50km30 10500 g20 to g50 km30 45000 g50km30 11000 g25 to g50 km30 47500 g50km30 11500 g25 to g50 km30 50000 g50km30 12000 g25 to g50

21

Page 22: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 18: Kurucz stellar atmosphere models for logZ= �3.5

File Name Gravity Range File Name Gravity Range

km35 3500 g00 to g35 km35 12500 g25 to g50km35 3750 g00 to g40 km35 13000 g25 to g50km35 4000 g00 to g45 km35 14000 g20 to g50km35 4250 g00 to g45 km35 15000 g25 to g50km35 4500 g00 to g50 km35 16000 g25 to g50km35 4750 g00 to g50 km35 17000 g25 to g50km35 5000 g00 to g50 km35 18000 g25 to g50km35 5250 g00 to g50 km35 19000 g25 to g50km35 5500 g00 to g50 km35 20000 g30 to g50km35 5750 g00 to g50 km35 21000 g30 to g50km35 6000 g00 to g50 km35 22000 g30 to g50km35 6250 g05 to g50 km35 23000 g30 to g50km35 6500 g05 to g50 km35 24000 g30 to g50km35 6750 g05 to g50 km35 25000 g30 to g50km35 7000 g05 to g50 km35 26000 g30 to g50km35 7250 g10 to g50 km35 27000 g35 to g50km35 7500 g10 to g50 km35 28000 g35 to g50km35 7750 g15 to g50 km35 29000 g35 to g50km35 8000 g15 to g50 km35 30000 g35 to g50km35 8250 g20 to g50 km35 31000 g35 to g50km35 8500 g15 to g50 km35 32000 g40 to g50km35 8750 g20 to g50 km35 33000 g40 to g50km35 9000 g15 to g50 km35 34000 g40 to g50km35 9250 g20 to g50 km35 35000 g40 to g50km35 9500 g20 to g50 km35 37500 g45 to g50km35 9750 g20 to g50 km35 40000 g45 to g50km35 10000 g20 to g50 km35 42500 g50km35 10500 g20 to g50 km35 45000 g50km35 11000 g25 to g50 km35 47500 g50km35 11500 g25 to g50 km35 50000 g50km35 12000 g25 to g50

22

Page 23: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 19: Kurucz stellar atmosphere models for logZ= �4.0

File Name Gravity Range File Name Gravity Range

km40 3500 g00 to g30 km40 12500 g25 to g50km40 3750 g00 to g35 km40 13000 g25 to g50km40 4000 g00 to g40 km40 14000 g20 to g50km40 4250 g00 to g30 km40 15000 g25 to g50km40 4500 g00 to g50 km40 16000 g25 to g50km40 4750 g00 to g50 km40 17000 g25 to g50km40 5000 g00 to g50 km40 18000 g25 to g50km40 5250 g00 to g50 km40 19000 g25 to g50km40 5500 g00 to g50 km40 20000 g30 to g50km40 5750 g00 to g50 km40 21000 g30 to g50km40 6000 g00 to g50 km40 22000 g30 to g50km40 6250 g05 to g50 km40 23000 g30 to g50km40 6500 g05 to g50 km40 24000 g30 to g50km40 6750 g05 to g50 km40 25000 g30 to g50km40 7000 g05 to g50 km40 26000 g30 to g50km40 7250 g10 to g50 km40 27000 g35 to g50km40 7500 g10 to g50 km40 28000 g35 to g50km40 7750 g15 to g50 km40 29000 g35 to g50km40 8000 g15 to g50 km40 30000 g35 to g50km40 8250 g20 to g50 km40 31000 g35 to g50km40 8500 g15 to g50 km40 32000 g40 to g50km40 8750 g20 to g50 km40 33000 g40 to g50km40 9000 g15 to g50 km40 34000 g40 to g50km40 9250 g20 to g50 km40 35000 g40 to g50km40 9500 g20 to g50 km40 37500 g45 to g50km40 9750 g20 to g50 km40 40000 g45 to g50km40 10000 g20 to g50 km40 42500 g50km40 10500 g20 to g50 km40 45000 g50km40 11000 g25 to g50 km40 47500 g50km40 11500 g25 to g50 km40 50000 g50km40 12000 g25 to g50

23

Page 24: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 20: Kurucz stellar atmosphere models for logZ= �4.5

File Name Gravity Range File Name Gravity Range

km45 3500 g00 to g25 km45 12500 g25 to g50km45 3750 g00 to g35 km45 13000 g25 to g50km45 4000 g00 to g35 km45 14000 g20 to g50km45 4250 g00 to g45 km45 15000 g25 to g50km45 4500 g00 to g50 km45 16000 g25 to g50km45 4750 g00 to g50 km45 17000 g25 to g50km45 5000 g00 to g50 km45 18000 g25 to g50km45 5250 g00 to g50 km45 19000 g25 to g50km45 5500 g00 to g50 km45 20000 g30 to g50km45 5750 g00 to g50 km45 21000 g30 to g50km45 6000 g00 to g50 km45 22000 g30 to g50km45 6250 g05 to g50 km45 23000 g30 to g50km45 6500 g05 to g50 km45 24000 g30 to g50km45 6750 g05 to g50 km45 25000 g30 to g50km45 7000 g05 to g50 km45 26000 g30 to g50km45 7250 g10 to g50 km45 27000 g35 to g50km45 7500 g10 to g50 km45 28000 g35 to g50km45 7750 g15 to g50 km45 29000 g35 to g50km45 8000 g15 to g50 km45 30000 g35 to g50km45 8250 g20 to g50 km45 31000 g35 to g50km45 8500 g15 to g50 km45 32000 g40 to g50km45 8750 g20 to g50 km45 33000 g40 to g50km45 9000 g15 to g50 km45 34000 g40 to g50km45 9250 g20 to g50 km45 35000 g40 to g50km45 9500 g20 to g50 km45 37500 g45 to g50km45 9750 g20 to g50 km45 40000 g45 to g50km45 10000 g20 to g50 km45 42500 g50km45 10500 g20 to g50 km45 45000 g50km45 11000 g25 to g50 km45 47500 g50km45 11500 g25 to g50 km45 50000 g50km45 12000 g25 to g50

24

Page 25: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 21: Kurucz stellar atmosphere models for logZ= �5.0

File Name Gravity Range File Name Gravity Range

km50 3500 g00 to g30 km50 12500 g25 to g50km50 3750 g00 to g30 km50 13000 g25 to g50km50 4000 g00 to g35 km50 14000 g20 to g50km50 4250 g00 to g40 km50 15000 g25 to g50km50 4500 g00 to g40 km50 16000 g25 to g50km50 4750 g00 to g45 km50 17000 g25 to g50km50 5000 g00 to g50 km50 18000 g25 to g50km50 5250 g00 to g50 km50 19000 g25 to g50km50 5500 g00 to g50 km50 20000 g30 to g50km50 5750 g00 to g50 km50 21000 g30 to g50km50 6000 g00 to g50 km50 22000 g30 to g50km50 6250 g05 to g50 km50 23000 g30 to g50km50 6500 g05 to g50 km50 24000 g30 to g50km50 6750 g05 to g50 km50 25000 g30 to g50km50 7000 g05 to g50 km50 26000 g30 to g50km50 7250 g10 to g50 km50 27000 g35 to g50km50 7500 g10 to g50 km50 28000 g35 to g50km50 7750 g15 to g50 km50 29000 g35 to g50km50 8000 g15 to g50 km50 30000 g35 to g50km50 8250 g20 to g50 km50 31000 g35 to g50km50 8500 g15 to g50 km50 32000 g40 to g50km50 8750 g20 to g50 km50 33000 g40 to g50km50 9000 g15 to g50 km50 34000 g40 to g50km50 9250 g20 to g50 km50 35000 g40 to g50km50 9500 g20 to g50 km50 37500 g45 to g50km50 9750 g20 to g50 km50 40000 g45 to g50km50 10000 g20 to g50 km50 42500 g50km50 10500 g20 to g50 km50 45000 g50km50 11000 g25 to g50 km50 47500 g50km50 11500 g25 to g50 km50 50000 g50km50 12000 g25 to g50

25

Page 26: CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS · CDBS KUR UCZ STELLAR A TMOSPHERE A TLAS Luis Colina (STScI/OSG) Instrumen t Science rep ort SCS/CAL-006 Octob er 1995 1. INTR ODUCTION An

TABLE 22: Suggested models for speci�c stellar types

Type Teff logg Kurucz model

O3V 52500 +4.14 kp00 50000[g50]O5V 44500 +4.04 kp00 45000[g50]O6V 41000 +3.99 kp00 40000[g45]O8V 35800 +3.94 kp00 35000[g40]B0V 30000 +3.94 kp00 30000[g40]B3V 18700 +3.94 kp00 19000[g40]B5V 15400 +4.04 kp00 15000[g40]B8V 11900 +4.04 kp00 12000[g40]A0V 9520 +4.14 kp00 9500[g40]A5V 8200 +4.29 kp00 8250[g45]F0V 7200 +4.34 kp00 7250[g45]F5V 6440 +4.34 kp00 6500[g45]G0V 6030 +4.39 kp00 6000[g45]G5V 5770 +4.49 kp00 5750[g45]K0V 5250 +4.49 kp00 5250[g45]K5V 4350 +4.54 kp00 4250[g45]M0V 3850 +4.59 kp00 3750[g45]M2V 3580 +4.64 kp00 3500[g45]M5V 3240 +4.94 kp00 3500[g50]B0III 29000 +3.34 kp00 29000[g35]B5III 15000 +3.49 kp00 15000[g35]G0III 5850 +2.94 kp00 5750[g30]G5III 5150 +2.54 kp00 5250[g25]K0III 4750 +2.14 kp00 4750[g20]K5III 3950 +1.74 kp00 4000[g15]M0III 3800 +1.34 kp00 3750[g15]O5I 40300 +3.34 kp00 40000[g45]O6I 39000 +3.24 kp00 40000[g45]O8I 34200 +3.24 kp00 34000[g40]BOI 26000 +2.84 kp00 26000[g30]B5I 13600 +2.44 kp00 14000[g25]AOI 9730 +2.14 kp00 9750[g20]A5I 8510 +2.04 kp00 8500[g20]F0I 7700 +1.74 kp00 7750[g20]F5I 6900 +1.44 kp00 7000[g15]G0I 5550 +1.34 kp00 5500[g15]G5I 4850 +1.14 kp00 4750[g10]K0I 4420 +0.94 kp00 4500[g10]K5I 3850 +0.34 kp00 3750[g05]M0I 3650 +0.14 kp00 3750[g00]M2I 3450 �0.06 kp00 3500[g00]

26