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THE 31 DEG(2) RELEASE OF THE STRIPE 82 X-RAY SURVEY: THE POINT SOURCE CATALOG
Journal article   Open access

THE 31 DEG(2) RELEASE OF THE STRIPE 82 X-RAY SURVEY: THE POINT SOURCE CATALOG

Stephanie M. LaMassa, C. Megan Urry, Nico Cappelluti, Hans Boehringer, Andrea Comastri, Eilat Glikman, Gordon Richards, Tonima Ananna, Marcella Brusa, Carie Cardamone, …
The Astrophysical journal, v 817(2), p1
01 Feb 2016
url
https://doi.org/10.3847/0004-637x/817/2/172View
Accepted (AM)Open Access (License Unspecified) Open
url
https://doi.org/10.3847/0004-637X/817/2/172View
Published, Version of Record (VoR) Open

Abstract

Astronomy & Astrophysics Physical Sciences Science & Technology
We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg(2) of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are significantly detected with XMM-Newton (>5 sigma) and Chandra (>4.5 sigma). This catalog release includes data from XMM-Newton cycle AO 13, which approximately doubled the Stripe 82X survey area. The flux limits of the Stripe 82X survey are 8.7 x 10(-16) erg s(-1) cm(-2), 4.7 x 10(-15) erg s(-1) cm(-2), and 2.1 x 10(-15) erg s(-1) cm(-2) in the soft (0.5-2 keV), hard (2-10 keV), and full bands (0.5-10 keV), respectively, with approximate half-area survey flux limits of 5.4 x 10(-15) erg s(-1) cm(-2), 2.9 x 10(-14) erg s(-1) cm(-2), and 1.7 x 10(-14) erg s(-1) cm(-2). We matched the X-ray source lists to available multi-wavelength catalogs, including updated matches to the previous release of the Stripe 82X survey; 88% of the sample is matched to a multi-wavelength counterpart. Due to the wide area of Stripe 82X and rich ancillary multi-wavelength data, including coadded SDSS photometry, mid-infrared WISE coverage, near-infrared coverage from UKIDSS and VISTA Hemisphere Survey, ultraviolet coverage from GALEX, radio coverage from FIRST, and far-infrared coverage from Herschel, as well as existing similar to 30% optical spectroscopic completeness, we are beginning to uncover rare objects, such as obscured high-luminosity active galactic nuclei at high-redshift. The Stripe 82X point source catalog is a valuable data set for constraining how this population grows and evolves, as well as for studying how they interact with the galaxies in which they live.

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