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Paper: A LABOCA Survey of the ECDF-S — the Submillimeter Properties of Near-Infrared Selected Galaxies
Volume: 417, Submillimeter Astrophysics and Technology: A Symposium Honoring Thomas G. Phillips
Page: 337
Authors: Greve, T. R.
Abstract: The 330 hr ESO-MPG 870 μm survey of the Extended Chandra Deep Field South (ECDF-S) obtained with the Large Apex BOlometer CAmera (LABOCA) on the Atacama Pathfinder EXperiment (APEX), was used to carry out a stacking analysis at 870 μm of a sample of 8266 Kvega≤ 20 selected galaxies from the Multi-wavelength Survey by Yale-Chile (MUSYC). Subsamples of 744 starforming BzK galaxies (sBzKs), 1253 extremely red objects (EROs) and 737 distant red galaxies (DRGs) all have significant stacked submm signals. A delineation of the average submm signal from Kvega≤ 20 selected galaxies as a function of (photometric) redshift, and find a decline in the average submm signal (and therefore IR luminosity and star formation rate) by a factor ∼ 2 – 3 from z∼ 2 to z∼ 0. This is in line with a cosmic star formation history in which the star formation activity in galaxies increases significantly at z>1. By mapping the stacked 870 μm signal across the B-z vs. z-K diagram we have confirmed the ability of the sBzK-selection criterion to select starforming galaxies at z > 1.5.
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