A Large, Uniform Sample of X-ray Emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample

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dc.creatorAnderson, Scott F.
dc.creatorMargon, Bruce
dc.creatorVoges, Wolfgang
dc.creatorPlotkin, Richard M.
dc.creatorSyphers, David
dc.creatorHaggard, Daryl
dc.creatorCollinge, Matthew J.
dc.creatorMeyer, Jillian
dc.creatorStrauss, Michael A.
dc.creatorAgueros, Marcel A.
dc.creatorHall, Patrick B.
dc.creatorHomer, L.
dc.creatorIvezic, Zeljko
dc.creatorRichards, Gordon T.
dc.creatorRichmond, Michael W.
dc.creatorSchneider, Donald P.
dc.creatorStinson, Gregory
dc.creatorBerk, Daniel E. Vanden
dc.creatorYork, Donald G.
dc.date2006-09-15
dc.date.accessioned2026-07-07T11:26:03Z
dc.date.available2026-07-07T11:26:03Z
dc.descriptionWe describe further results of a program aimed to yield ~10^4 fully characterized optical identifications of ROSAT X-ray sources. Our program employs X-ray data from the ROSAT All-Sky Survey (RASS), and both optical imaging and spectroscopic data from the Sloan Digital Sky Survey (SDSS). RASS/SDSS data from 5740 deg^2 of sky spectroscopically covered in SDSS Data Release 5 (DR5) provide an expanded catalog of 7000 confirmed quasars and other AGN that are probable RASS identifications. Again in our expanded catalog, the identifications as X-ray sources are statistically secure, with only a few percent of the SDSS AGN likely to be randomly superposed on unrelated RASS X-ray sources. Most identifications continue to be quasars and Seyfert 1s with 15<m<21 and 0.01<z<4; but the total sample size has grown to include very substantial numbers of even quite rare AGN, e.g., now including several hundreds of candidate X-ray emitting BL Lacs and narrow-line Seyfert 1 galaxies. In addition to exploring rare subpopulations, such a large total sample may be useful when considering correlations between the X-ray and the optical, and may also serve as a resource list from which to select the "best" object (e.g., X-ray brightest AGN of a certain subclass, at a preferred redshift or luminosity) for follow-on X-ray spectral or alternate detailed studies.
dc.descriptionAccepted for publication in AJ; 32 pages, including 11 figures, and 6 example tables
dc.identifierhttps://arxiv.org/abs/astro-ph/0609458
dc.identifierhttp://arxiv.org/abs/astro-ph/0609458
dc.identifierAstron.J.133:313-329,2007
dc.identifierdoi:10.1086/509765
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195701
dc.subjectAstrophysics
dc.titleA Large, Uniform Sample of X-ray Emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample
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