The LABOCA survey of the Extended Chandra Deep Field-South - radio and mid-infrared counterparts to submillimetre galaxies

被引:81
|
作者
Biggs, A. D. [1 ,2 ]
Ivison, R. J. [2 ,3 ]
Ibar, E. [2 ,3 ]
Wardlow, J. L. [4 ]
Dannerbauer, H. [5 ,6 ]
Smail, Ian [4 ]
Walter, F. [5 ]
Weiss, A. [7 ]
Chapman, S. C. [8 ]
Coppin, K. E. K. [4 ]
De Breuck, C. [1 ]
Dickinson, M. [9 ]
Knudsen, K. K. [10 ]
Mainieri, V. [1 ]
Menten, K. [7 ]
Papovich, C. [11 ]
机构
[1] European So Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
[2] Royal Observ, UK Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland
[3] Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland
[4] Univ Durham, Inst Computat Cosmol, Durham DH1 6LE, England
[5] Max Planck Inst Astron, D-69117 Heidelberg, Germany
[6] CEA CNRS Univ, CEA Saclay, CNRS, Lab AIM Paris Saclay,Irfu Serv Astrophys, F-91191 Gif Sur Yvette, France
[7] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[8] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[9] Natl Opt Astron Observ, Tucson, AZ 85719 USA
[10] Argelander Inst Astron, D-53121 Bonn, Germany
[11] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
基金
美国国家航空航天局;
关键词
galaxies: formation; galaxies: starburst; cosmology: observations; early Universe; DEGREE EXTRAGALACTIC SURVEY; AZTEC MILLIMETER SURVEY; SCUBA SUPER-MAP; GOODS-N FIELD; SOURCE COUNTS; COSMOS FIELD; SPITZER; 70; X-RAY; REDSHIFT; MM;
D O I
10.1111/j.1365-2966.2010.18132.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present radio and infrared (3.6-24 m) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field-South with the Large APEX Bolometer Camera (LABOCA) 870- m bolometer camera on the 12-m Atacama Pathfinder Experiment. Using the Very Large Array at 1.4 GHz and Spitzer, we have identified secure counterparts to 79 of the 126 SMGs [signal-to-noise ratio (S/N) > 3.7, S-870 > 4.4 mJy] in the field, 62 via their radio and/or 24- m emission, the remainder using a colour-flux cut on Infrared Array Camera 3.6- and 5.8- m sources chosen to maximize the number of secure, coincident radio and 24- m counterparts. In constructing our radio catalogue, we have corrected for the effects of 'flux boosting', then used the corrected flux densities to estimate the redshifts of the SMGs based on the radio/submm spectral indices. The effect of the boosting correction is to increase the median redshift by 0.2 resulting in a value of (1 errors) for the secure radio counterparts, in agreement with other studies, both spectroscopic and photometric.
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页码:2314 / 2338
页数:25
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