Artículo de revista
The 31 DEG2 release of the stripe 82 X-RAY survey: the point source catalog
Fecha
2016-02-01Registro en:
The Astrophysical Journal, 817:172 (21pp), 2016 February 1
10.3847/0004-637X/817/2/172
Autor
LaMassa, Stephanie
Urry, C. Megan
Cappellut, Nico
Böhringer, Hans
Comastri, Andrea
Glikman, Eilat
Richards, Gordon
Ananna, Tonima
Brusa, Marcella
Cardamone, Carie
Chon, Gayoung
Civano, Francesca
Farrah, Duncan
Gilfanov, Marat
Green, Paul
Komossa, S.
Lira Teillery, Paulina
Makler, Martin
Marchesi, Stefano
Pecoraro, Robert
Ranalli, Piero
Salvato, Mara
Schawinski, Kevin
Stern, Daniel
Treister, Ezequiel
Viero, Marco
Institución
Resumen
We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg2 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 × 10−16 erg s−1 cm−2, 4.7 × 10−15 erg s−1 cm−2, and 2.1 × 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 × 10−15 erg s−1 cm−2, 2.9 × 10−14 erg s−1 cm−2, and 1.7 × 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 ~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.