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We present a compilation of properties of the 105,783 quasars in the SDSSData Release 7 (DR7) quasar catalog. In this value-added product, we compilecontinuum and emission line measurements around the Halpha, Hbeta, MgII and CIVregions, as well as other quantities such as radio properties, broad absorptionline quasar (BALQSO) flags, and disk emitters. We also compile virial blackhole mass estimates based on various calibrations. For the fiducial virial massestimates we use the Vestergaard & Peterson (VP06) calibrations for Hbeta andCIV, and our own calibration for MgII which matches the VP06 Hbeta masses onaverage. We describe the construction of this catalog, and discuss itslimitations. The catalog and its future updates will be made publicly availableonline.

A Catalog of Quasar Properties from SDSS DR7