An ALMA Survey of Submilleter Galaxies in the Extended Chandra Deep Field-South: The AGN Fraction and X-Ray Properties of Submillimeter Galaxies

S.X. Wang, W. N. Brandt, B. Luo, I. Smail, D.M. Alexander, A. L. R. Danielson, J. A. Hodge, A. Karim, B.D. Lehmer, James Simpson, A.M. Swinbank, Fabian Walter, Julie Wardlow, Y. Q. Xue, S. Chapman, Kristen Coppin, H. Dannerbauer, Carlos De Breuck, K. M. Menten, P. van der Werf

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Abstract

The large gas and dust reservoirs of submillimeter galaxies (SMGs) could potentially provide ample fuel to trigger an active galactic nucleus (AGN), but previous studies of the AGN fraction in SMGs have been controversial largely due to the inhomogeneity and limited angular resolution of the available submillimeter surveys. Here we set improved constraints on the AGN fraction and X-ray properties of the SMGs with Atacama Large Millimeter/submillimeter Array (ALMA) and Chandra observations in the Extended Chandra Deep Field-South (E-CDF-S). This study is the first among similar works to have unambiguously identified the X-ray counterparts of SMGs; this is accomplished using the fully submillimeter-identified, statistically reliable SMG catalog with 99 SMGs from the ALMA LABOCA E-CDF-S Submillimeter Survey
Original languageEnglish
Article number179
Number of pages25
JournalThe Astrophysical Journal
Volume778
Issue number2
DOIs
Publication statusPublished - 2013

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