The 31 Deg Release of the Stripe 82 X-ray Survey: the Point Source Catalog


We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are significantly detected with XMM-Newton (>5σ) and Chandra (>4.5σ). 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×10 erg s cm, 4.7×10 erg s cm, and 2.1×10 erg s cm 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×10 erg s cm, 2.9×10 erg s cm, and 1.7×10 erg s cm. 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 ∼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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@inproceedings{LaMassa2015The3D, title={The 31 Deg Release of the Stripe 82 X-ray Survey: the Point Source Catalog}, author={Stephanie M. LaMassa and Claudia M. Urry and Nico Cappelluti and Hans Boehringer and Andrea Comastri and E. Glikman and Gordon Richards and Tonima Ananna and Marcella Brusa and Carie Cardamone and Gayoung Chon and Francesca Civano and Duncan Farrah and Marat R. Gilfanov and P. J. Green and S. Komossa and Paulina Lira and Martin Makler and Stefano Marchesi and Robert Pecoraro and Piero Ranalli and Mara Salvato and Kevin Schawinski and Daniel Stern and Ezequiel Treister and Marco P. Viero}, year={2015} }