/ftp/cats/VII/243



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VII/243   ==OBSOLETE version of Catalogue==
27-Sep-2008: (by Francois Ochsenbein) See VII/252
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VII/243
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drwxr-xr-x 257 cats archive 8192 Feb 8 10:28 [Up] drwxr-xr-x 2 cats archive 267 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 394 Dec 19 2022 .message -rw-r--r-- 1 cats archive 50 Sep 27 2008 =obsolete= -r--r--r-- 1 cats archive 11144 Aug 12 2006 ReadMe -rw-r--r-- 1 cats archive 1980 Sep 19 2007 +footg5.gif -rw-r--r-- 1 cats archive 10894 Mar 5 2008 +footg8.gif -r--r--r-- 1 cats archive 4462293 May 26 2005 dr3qso.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : VII/243 SDSS quasar catalog. III. (Schneider+, 2005) ================================================================================ The Sloan Digital Sky Survey quasar catalog. III. Third data release. Schneider D.P., Hall P.B., Richards G.T., Vanden Berk D.E., Anderson S.F., Fan X., Jester S., Stoughton C., Strauss M.A., Subbarao M., Brandt W.N., Gunn J.E., Yanny B., Bahcall N.A., Barentine J.C., Blanton M.R., Boroski W.N., Brewington H.J., Brinkmann J., Brunner R., Csabai I., Doi M., Eisenstein D.J., Frieman J.A., Fukugita M., Gray J., Harvanek M., Heckman T.M., Ivezic Z., Kent S., Kleinman S.J., Knapp G.R., Kron R.G., Krzesinski J., Long D.C., Loveday J., Lupton R.H., Margon B., Munn J.A., Neilsen E.H., Newberg H.J., Newman P.R., Nichol R.C., Nitta A., Pier J.R., Rockosi C.M., Saxe D.H., Schlegel D.J., Snedden S.A., Szalay A.S., Thakar A.R., Uomoto A., Voges W., York D.G. <Astron. J., 130, 367-380 (2005)> =2005AJ....130..367S ================================================================================ ADC_Keywords: QSOs ; Surveys ; Photometry, SDSS ; Redshifts Keywords: catalogs - quasars: general - surveys Abstract: The catalog consists of the 46,420 objects in the SDSS Third Data Release that have luminosities larger than M_i_=-22 (in a cosmology with Ho=70km/s/Mpc, Omega_M_=0.3 and Omega_Lambda_=0.7), have at least one emission line with FWHM larger than 1000 km/s or are unambiguously broad absorption line quasars, are fainter than i=15.0 and have highly reliable redshifts. The area covered by the catalog is about 4188 deg^2^. The quasar redshifts range from 0.08 to 5.41, with a median value of 1.47; the high-redshift sample includes 520 quasars at redshifts greater than four, of which 17 are at redshifts greater than five. For each object the catalog presents positions accurate to better than 0.2" rms per coordinate, five-band (ugriz) CCD-based photometry with typical accuracy of 0.03 mag, and information on the morphology and selection method. The catalog also contains radio, near-infrared, and X-ray emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra cover the wavelength region 3800-9200AA at a spectral resolution of about 2000; the spectra can be retrieved from the public database using the information provided in the catalog. A total of 44,221 objects in the catalog were discovered by the SDSS; 28,400 of the SDSS discoveries are reported here for the first time. Description: The SDSS uses a CCD camera on a dedicated 2.5m telescope at Apache Point Observatory, New Mexico, to obtain images in five broad optical bands (ugriz) over approximately 10,000deg^2^ of the high Galactic latitude sky. The catalog contains photometry from 136 different SDSS imaging runs acquired between 1998 September 19 (run 94) and 2003 May 1 (run 3927) and spectra from 826 spectroscopic plates taken between 2000 March 5 and 2003 July 6.