%0 Generic %1 decarli2013survey %A Decarli, R. %A Smail, I. %A Walter, F. %A Swinbank, A. M. %A Chapman, S. %A Coppin, K. E. K. %A Cox, P. %A Dannerbauer, H. %A Greve, T. R. %A Hodge, J. A. %A Ivison, R. %A Karim, A. %A Knudsen, K. K. %A Lindroos, L. %A Rix, H. W. %A Schinnerer, E. %A Simpson, J. M. %A van der Werf, P. %A Weiss, A. %D 2013 %K dust galaxies highz sfr %T An ALMA survey of sub-millimeter galaxies in the Extended Chandra Deep Field South: Sub-millimeter properties of color-selected galaxies %U http://arxiv.org/abs/1311.2604 %X We study the sub-mm properties of color-selected galaxies via a stacking analysis applied for the first time to interferometric data at sub-mm wavelengths. We base our study on 344 GHz ALMA continuum observations of ~20''-wide fields centered on 86 sub-mm sources detected in the LABOCA Extended Chandra Deep Field South Sub-mm Survey (LESS). We select various classes of distant galaxies (K-selected, star-forming sBzK galaxies, extremely red objects and distant red galaxies) according to their optical and NIR fluxes. We find clear, >10-sigma detections in the stacked images of all galaxy classes considered in our study. We include in our stacking analysis Herschel/SPIRE data to constrain the dust SED of these galaxies. We find that their dust emission is well described by a modified black body with Tdust~30 K and beta=1.6 and IR luminosities of (5-11) x 10^11 Lsun, or implied star formation rates between 75 and 140 Msun/yr. We compare our results with those of previous studies of these galaxy populations based on single-dish observations at 870 micron and find that our flux densities are a factor 2-3 higher than previous estimates. The discrepancy is observed also when we remove sources individually detected in ALESS maps (<35% of the galaxies in all the samples). We report a similar discrepancy by repeating our analysis on 1.4 GHz interferometric observations of the whole ECDFS. Hence we find tentative evidence that galaxies that are associated in projected and redshift space with sub-mm bright sources are brighter than the average population. Finally, we put our findings in the context of the cosmic star formation rate density as a function of z.

@misc{decarli2013survey, abstract = {We study the sub-mm properties of color-selected galaxies via a stacking analysis applied for the first time to interferometric data at sub-mm wavelengths. We base our study on 344 GHz ALMA continuum observations of ~20''-wide fields centered on 86 sub-mm sources detected in the LABOCA Extended Chandra Deep Field South Sub-mm Survey (LESS). We select various classes of distant galaxies (K-selected, star-forming sBzK galaxies, extremely red objects and distant red galaxies) according to their optical and NIR fluxes. We find clear, >10-sigma detections in the stacked images of all galaxy classes considered in our study. We include in our stacking analysis Herschel/SPIRE data to constrain the dust SED of these galaxies. We find that their dust emission is well described by a modified black body with Tdust~30 K and beta=1.6 and IR luminosities of (5-11) x 10^{11} Lsun, or implied star formation rates between 75 and 140 Msun/yr. We compare our results with those of previous studies of these galaxy populations based on single-dish observations at 870 micron and find that our flux densities are a factor 2-3 higher than previous estimates. The discrepancy is observed also when we remove sources individually detected in ALESS maps (<35% of the galaxies in all the samples). We report a similar discrepancy by repeating our analysis on 1.4 GHz interferometric observations of the whole ECDFS. Hence we find tentative evidence that galaxies that are associated in projected and redshift space with sub-mm bright sources are brighter than the average population. Finally, we put our findings in the context of the cosmic star formation rate density as a function of z.}, added-at = {2013-11-13T17:06:13.000+0100}, author = {Decarli, R. and Smail, I. and Walter, F. and Swinbank, A. M. and Chapman, S. and Coppin, K. E. K. and Cox, P. and Dannerbauer, H. and Greve, T. R. and Hodge, J. A. and Ivison, R. and Karim, A. and Knudsen, K. K. and Lindroos, L. and Rix, H. W. and Schinnerer, E. and Simpson, J. M. and van der Werf, P. and Weiss, A.}, biburl = {https://www.bibsonomy.org/bibtex/238ee2e93d9ff6b815dbdefb906da65f8/miki}, description = {[1311.2604] An ALMA survey of sub-millimeter galaxies in the Extended Chandra Deep Field South: Sub-millimeter properties of color-selected galaxies}, interhash = {0ef3d7f74ea928fb69ed8704cfd4608f}, intrahash = {38ee2e93d9ff6b815dbdefb906da65f8}, keywords = {dust galaxies highz sfr}, note = {cite arxiv:1311.2604Comment: 9 figures. Accepted for publication in ApJ}, timestamp = {2013-11-13T17:06:13.000+0100}, title = {An ALMA survey of sub-millimeter galaxies in the Extended Chandra Deep Field South: Sub-millimeter properties of color-selected galaxies}, url = {http://arxiv.org/abs/1311.2604}, year = 2013 }