TY - JOUR
T1 - The LABOCA survey of the Extended Chandra Deep Field-South
T2 - radio and mid-infrared counterparts to submillimetre galaxies
AU - Biggs, A.D.
AU - Ivison, R.J.
AU - Ibar, E.
AU - Wardlow, J. L.
AU - Dannerbauer, H.
AU - Smail, I.
AU - Walter, F.
AU - Weiss, A.
AU - Chapman, S.C.
AU - Coppin, Kristen
AU - De Breuck, C.
AU - Dickinson, M.
AU - Knudsen, K.K.
AU - Mainieri, V.
AU - Menten, K.
AU - Papovich, C.
N1 - copyright Royal Astronomical Society
PY - 2011/6/1
Y1 - 2011/6/1
N2 - We present radio and infrared (3.6-24μm) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field-South with the Large APEX Bolometer Camera (LABOCA) 870-μm bolometer camera on the 12-m Atacama Pathfinder Experiment. Using the Very Large Array at 1.4GHz and Spitzer, we have identified secure counterparts to 79 of the 126 SMGs [signal-to-noise ratio (S/N) > 3.7,S > 4.4mJy] in the field, 62 via their radio and/or 24-μm emission, the remainder using a colour-flux cut on Infrared Array Camera 3.6- and 5.8-μm sources chosen to maximize the number of secure, coincident radio and 24-μm 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 (1σ errors) for the secure radio counterparts, in agreement with other studies, both spectroscopic and photometric.
AB - We present radio and infrared (3.6-24μm) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field-South with the Large APEX Bolometer Camera (LABOCA) 870-μm bolometer camera on the 12-m Atacama Pathfinder Experiment. Using the Very Large Array at 1.4GHz and Spitzer, we have identified secure counterparts to 79 of the 126 SMGs [signal-to-noise ratio (S/N) > 3.7,S > 4.4mJy] in the field, 62 via their radio and/or 24-μm emission, the remainder using a colour-flux cut on Infrared Array Camera 3.6- and 5.8-μm sources chosen to maximize the number of secure, coincident radio and 24-μm 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 (1σ errors) for the secure radio counterparts, in agreement with other studies, both spectroscopic and photometric.
UR - https://www.scopus.com/pages/publications/79956200407
U2 - 10.1111/j.1365-2966.2010.18132.x
DO - 10.1111/j.1365-2966.2010.18132.x
M3 - Article
AN - SCOPUS:79956200407
SN - 0035-8711
VL - 413
SP - 2314
EP - 2338
JO - Monthly Notices of the Royal Astronomical Society (MNRAS)
JF - Monthly Notices of the Royal Astronomical Society (MNRAS)
IS - 4
ER -