Spitzer observations of the SCUBA/VLA sources in the Lockman Hole:: Star formation history of infrared-luminous galaxies

被引:104
|
作者
Egami, E
Dole, H
Huang, JS
Pérez-Gonzalez, P
Le Floc'h, E
Papovich, C
Barmby, P
Ivison, RJ
Serjeant, S
Mortier, A
Frayer, DT
Rigopoulou, D
Lagache, G
Rieke, GH
Willner, SP
Alonso-Herrero, A
Bai, L
Engelbracht, CW
Fazio, GG
Gordon, KD
Hines, DC
Misselt, KA
Miyazaki, S
Morrison, JE
Rieke, MJ
Rigby, JR
Wilson, G
机构
[1] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
[2] Univ Paris 11, Inst Astrophys Spatiale, F-91405 Orsay, France
[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[4] Royal Observ, Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland
[5] Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland
[6] Univ Kent, Sch Phys Sci, Ctr Astrophys & Planetary Sci, Canterbury CT2 7NR, Kent, England
[7] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA
[8] Astrophys, Oxford OX1 3RH, England
[9] Consejo Super Invest Cient, Madrid 28006, Spain
[10] Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA
来源
关键词
cosmology : observations; galaxies : evolution; galaxies : high-redshift; infrared : galaxies;
D O I
10.1086/423322
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present Spitzer Space Telescope imaging observations at 3.6, 4.5, 5.8, 8.0, and 24 mum of the SCUBA submillimeter sources and muJy VLA radio sources in a 5' x 5' area in the Lockman Hole East region. Out of the similar to 40 SCUBA/VLA sources in the field, Spitzer counterparts were detected for nearly all except for the few low-weight SCUBA detections. We show that the majority (80% - 90%) of the detected sources are cold (i.e., starburst-like) infrared-luminous galaxies (L-IR > 10(11) L-.) at redshift 0.5 < z < 3.5, whose star-formation rate density (SFRD) is comparable to that of the optically selected star-forming galaxies.
引用
收藏
页码:130 / 136
页数:7
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