The LABOCA Survey of the Extended Chandra Deep Field South
A. Weiss, A. Kovacs, K. Coppin, T.R. Greve, F. Walter, Ian Smail, J.S., Dunlop, K.K. Knudsen, D.M. Alexander, F. Bertoldi, W.N. Brandt, S.C. Chapman,, P. Cox, H. Dannerbauer, C. De Breuck, E. Gawiser, R.J. Ivison, D. Lutz, K.M., Menten, A.M. Koekemoer, E. Kreysa, P. Kurczynski

TL;DR
This paper presents a comprehensive 870 micron survey of the Extended Chandra Deep Field South, detecting 126 submillimetre galaxies, analyzing their distribution, clustering, and contribution to the extragalactic background light, and comparing findings with other fields.
Contribution
It provides the largest contiguous deep submillimetre survey to date, with detailed source counts, clustering analysis, and insights into the field's galaxy population and background light contribution.
Findings
Detected 126 SMGs with >3.7 sigma significance.
Found a deficit of bright SMGs compared to other fields.
SMG clustering shows strong correlation on <1' scales.
Abstract
We present a sensitive 870 micron survey of the Extended Chandra Deep Field South (ECDFS) using LABOCA on the APEX telescope. The LABOCA ECDFS Submillimetre Survey (LESS) covers the full 30' x 30' field size of the ECDFS and has a uniform noise level of 1.2 mJy/beam. LESS is thus the largest contiguous deep submillimetre survey undertaken to date. The noise properties of our map show clear evidence that we are beginning to be affected by confusion noise. We present a catalog of 126 SMGs detected with a significance level above 3.7 sigma. The ECDFS exhibits a deficit of bright SMGs relative to previously studied blank fields but not of normal star-forming galaxies that dominate the extragalactic background light (EBL). This is in line with the underdensities observed for optically defined high redshift source populations in the ECDFS (BzKs, DRGs,optically bright AGN and massive K-band…
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