Washington, D'C'

1
S-COSMOS Spitzer Deep Survey of the HST COSMOS
2 deg2 ACS Field
Cycle 2 GO Large proposal (220 Hrs)
IRAC 160 Hrs (2.0 deg2) MIPS 60
Hrs (0.2 deg2)
Washington, D.C. AAS, 11 Jan, 2006
2
Click here
p.1 of 2
7 others
3
(No Transcript)
4
Click here
5
(No Transcript)
6
Comparison of Spitzer Survey sensitivities
7
S-COSMOS IRAC first light 27 Dec, 2005
3.6 ?m
8
S-COSMOS IRAC first light 27 Dec, 2005
8 ?m
9
3
10
Galaxy Luminosity Functions
slope -1
LFIR high luminosity tail ? ? L-2.35
? (z) ? (1z)5-8 ? 3.5 ? (z lt0.2) 0.008
deg-2
11
Galaxy Luminosity Functions
slope -1
Z 2.4
Z0.80
Z0.40
Z0.13
Z0.045
12
The Origin and Evolution of
Luminous Infrared Galaxies
Strong Interactions/Mergers of Molecular Gas-rich
Disks
13
Log (LIR/Lsun) 11.01
Early-Mid stage merger
Gao et al. Mirabel et al. Hibbard et al. Ponman
et al.
14
Log (LIR/Lsun) 12.57
UGC 83038 Mrk 231
Late stage merger
Sanders et al. Hutchings Neff
Scoville et al. Surace et al
15
Optical Spectral Classification of LIGsULIGs
Veilleux, Kim Sanders (1998)
KPNO 4m UH 2.2m
16
_at_ Lir gt 1011 Lsun Strong Interactions and
mergers of gas-rich disks
LIG
ULIG -gt ?
QSO
A plausible scenario ..
17
Galaxy Luminosity Functions
slope -1
Z 2.4
Z0.80
Z0.40
Z0.13
Z0.045
18
SFR MBH versus Redshift