WebWe present the results of a survey for Ca II λλ3934, 3969 absorption-line systems culled from ∼95 000 Sloan Digital Sky Survey (SDSS) Data … WebApr 11, 2012 · The SDSS DR7 quasar catalog also contains 36 additional lenses identified with various techniques. In addition to these lensed quasars, we have identified 81 pairs of quasars from follow-up spectroscopy, 26 of which are physically associated binary quasars. ... The Sloan Digital Sky Survey Quasar Lens Search (SQLS; Oguri et al. 2006, ...
The Sloan Digital Sky Survey Quasar Catalog: fourteenth data release
WebThe Sloan Digital Sky Survey or SDSS is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States. The project began in 2000 and was named after the Alfred P. Sloan Foundation, which contributed significant funding. Webquasars, and recent results from the 2dF Quasar Survey (Croom et al. 2001) have pushed quasar survey sample sizes pastthe10,000objectmilestone. This paper describes the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The goal of the SDSS quasar survey is to obtain spectra of 100,000 quasarsfrom10,000deg2 ... blast products slc
The Sloan Digital Sky Survey Quasar Catalog: ninth data release
WebApr 1, 2007 · We present the first edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 3814 objects (3000 discovered by the SDSS) in the initial SDSS public data release that have at least one emission line with a full width at half maximum larger than 1000 km/s, luminosities brighter than M_i^* = -23, and highly ... WebThis file contains all the quasars of the SDSS-DR9 Quasar Catalog. 87,822 quasars have been identified. This sample is the one used by the SDSS-BOSS collaboration. DR9Q.fits (82 MB): SDSS-DR9Q (Main catalog, fits format) DR9Q.dat … WebThe Sloan Digital Sky Survey Quasar Catalog: sixteenth data release (DR16Q) Overview. In the tradition of previous SDSS data releases, DR16 is accompanied by a quasar catalog. … blast production company