local universe milky way galactic archaeology: …chiba/lecture/ga2019/...stellar mass density...
TRANSCRIPT
:
Gal
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Arc
haeo
logy
:D
ecip
herin
g fo
rmat
ion
hist
orie
s of
ga
laxi
es fr
om th
e lo
cal u
nive
rse
Mas
ashi
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ba(T
ohok
u U
niv)
1ht
tps:
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tr.to
hoku
.ac.
jp/~
chib
a/le
ctur
e/G
A20
19/in
dex.
htm
l
Milk
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ay
And
rom
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Sen
dai
Loca
l Uni
vers
e
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Gal
axy
3
Bek
ki &
Chi
ba 2
001
4
•Ph
otom
etry
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ectro
scop
y
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trom
etry
5
inne
r hal
o
oute
r hal
o
glob
ular
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ster
halo
star
thic
k di
sk
Thin
dis
k
: a
ge <
10
Gyr
Thic
k di
sk, H
alo
: age
> 1
0 G
yrB
ulge
:
age
~ 1
0 G
yr
bulg
e
6
TO
RG
BH
BA
GB SG
V
BV
BS
MS
7
Foss
il re
cord
s of
gal
axy
form
atio
nG
alac
tic A
rcha
eolo
gy8
9
Cos
mic
sta
r for
mat
ion
hist
ory
Mad
au &
Dic
kins
on (2
014)
Star
For
mat
ion
Rat
e D
ensi
ty e
volu
tion
Stel
lar M
ass
Den
sity
evo
lutio
n
Milk
y W
ay &
Gal
actic
sate
llite
s
10
Loca
l Gro
up
11
HS
T ph
otom
etry
of L
G g
alax
ies
12
Leo
I (dS
ph)
13
Stre
am
Nor
ther
n Sp
ur
G1
Clu
mp
M32
And
rom
eda
Gal
axy
Sub
stru
ctur
e in
M31
’s h
alo
(Fer
guso
n et
al.
2002
)
14
AC
S/H
ST p
hoto
met
ry o
f M31
’s h
alo
(usi
ng 1
20 H
ST o
rbits
!)
V=3
0mag
V=2
8mag
15
Hal
o re
aliz
atio
n 1
1616
Hal
o fo
rmat
ion
mod
el (B
ullo
ck &
Joh
nsto
n 20
05)
mer
ging
tree
+ s
emi-a
naly
tic g
alax
y fo
rmat
ion
Out
line
1. 2. 3. 4. 5. 6.
17
•G
alac
tic D
ynam
ics
(200
8) b
y B
inne
y &
Tr
emai
ne (P
rince
ton)
•N
ucle
osyn
thes
is a
nd C
hem
ical
Evo
lutio
n of
G
alax
ies
(199
7) b
y P
agel
(Cam
brid
ge)
•Ev
olut
ion
of S
tars
and
Ste
llar P
opul
atio
ns
(200
5) b
y S
alar
is &
Cas
sisi
(Wile
y)•
,,
()
•G
alac
tic A
rcha
eolo
gy20
15by
18