Other
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743013b&link_type=abstract
American Astronomical Society, AAS Meeting #217, #430.13; Bulletin of the American Astronomical Society, Vol. 43, 2011
Other
Scientific paper
We present further results of an extensive program to optically identify quasars and other AGN detected as X-ray sources. Identifications are made via a combination of X-ray data from the ROSAT All-Sky Survey (RASS) and optical imaging and spectroscopic data from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7). These RASS/SDSS data provide an expanded catalog of approximately ten-thousand confirmed quasars and other AGN, across a broad redshift and luminosity range, that are likely RASS X-ray sources identifications. As part of this expanded catalog, we identify thousands of AGN exhibiting narrow permitted emission lines (including narrow-line Seyfert 1 candidates), as well as hundreds of X-ray emitting BL Lac candidates. Identifications as X-ray sources are statistically secure, with only a few percent likely to be random superpositions. We use our large sample of X-ray identifications to consider rare and interesting subsets of AGN, and to investigate the overall relationship between X-ray and optical luminosities in quasars/AGN.
Anderson Scott F.
Binder Breanna A.
Haggard Daryl
Margon Bruce
Plotkin Richard M.
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