VII/252ivo://CDS.VizieR/VII/252CDSSchneider D.P.Hall P.B.Richards G.T.Strauss M.A.Vanden Berk D.E.,Anderson S.F.Brandt W.N.Fan X.Jester S.Gray J.Gunn J.E.,Subbarao M.U.Thakar A.R.Stoughton C.Szalay A.S.Yanny B.York D.G.,Bahcall N.A.Barentine J.Blanton M.R.Brewington H.Brinkmann J.,Brunner R.J.Castander F.J.Csabai I.Frieman J.A.Fukugita M.,Harvanek M.Hogg D.W.Ivezic Z.Kent S.M.Kleinman S.J.Knapp G.R.,Kron R.G.Krzesinski J.Long D.C.Lupton R.H.Nitta A.Pier J.R.,Saxe D.H.Shen Y.Snedden S.A.Weinberg D.H.Wu J.2010-06-23T15:02:33Z2010-02-11T14:47:43ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frquasarssurveysvisible-astronomysloan-photometryredshiftedThe fourth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog, made from the SDSS Fifth Data Release, contains 77,429 objects; this is an increase of over 30,000 entries since the previous edition (Schneider et al., Cat. <VII/243>). The catalog consists of the objects in the SDSS Fifth Data Release that have luminosities larger than M_i_=-22.0 (in a cosmology with Ho=70km.s-1.Mpc-1, {Omega}_M_=0.3, and {Omega}_{Lambda}_=0.7), have at least one emission line with FWHM larger than 1000km.s-1 or have interesting or complex absorption features, are fainter than i~15.0, and have highly reliable redshifts. The area covered by the catalog is about 5740deg^2^. The quasar redshifts range from 0.08 to 5.41, with a median value of 1.48; the catalog includes 891 quasars at redshifts greater than 4, of which 36 are at redshifts greater than 5. Approximately half of the catalog quasars have i<19; nearly all have i<21. 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 0.03mag, and information on the morphology and selection method. The catalog also contains basic 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 3800-9200{AA} at a spectral resolution of about 2000; the spectra can be retrieved from the public database using the information provided in the catalog. The average SDSS colors of quasars as a function of redshift, derived from the catalog entries, are presented in tabular form. Approximately 96% of the objects in the catalog were discovered by the SDSS.2007AJ....134..102Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/VII/252CatalogResearchIsServedByTAP VizieR generic serviceIsPreviousVersionOfVII/260IsServedByConesearch servicerelated-toII/276 : SDSS Photometric Catalog, Release 5 (Adelman-McCarthy+, 2007)J/ApJ/680/169 : SDSS DR5 virial black hole masses (Shen+, 2008)http://www.sdss.org : SDSSHome Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VII/252https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VII/252http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VII/252https://vizier.cds.unistra.fr/viz-bin/votable?-source=VII/252https://vizier.iucaa.in/viz-bin/votable?-source=VII/252http://vizieridia.saao.ac.za/viz-bin/votable?-source=VII/252GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VII/252/dr5qso (The SDSS Quasar Catalog IV, DR5)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/252/dr5qso?https://vizier.iucaa.in/viz-bin/conesearch/VII/252/dr5qso?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/252/dr5qso?GETtext/xml+votable180.050000true0.027228060.515348890.0055555555555555562/25 38 43 3/64 75 77 78 79 83 85 86 87 88 89 90 92 94 95 112 113 116 147 165 166 167 170 171 176 177 178 184 423 427 428 430 432 433 434 4/260 261 262 264 296 297 299 306 307 331 339 365 366 367 373 374 375 389 390 391 399 456 457 458 469 512 514 567 571 573 574 575 576 577 578 580 582 583 585 586 587 600 602 624 657 658 659 674 677 678 679 716 718 740 744 745 746 1621 1622 1623 1625 1626 1627 1628 1629 1630 1637 1638 1639 1641 1642 1643 1644 1648 1685 1687 1691 1703 1707 1718 1724 1740 1741 1742 1745 1746 1760 1787 1789 1790 1791 1962 2027 5/136 138 1052 1060 1061 1088 1089 1090 1150 1151 1178 1179 1181 1182 1183 1192 1193 1195 1222 1223 1303 1305 1307 1308 1310 1311 1318 1319 1321 1322 1323 1344 1349 1350 1351 1353 1354 1355 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36812 36816 36817 36818 36832 36861 36862 36863 40959 45023 45039 45043 48983 48987 49005 49007 49020 49021 49022 49077 49078 49079 49091 49108 49112 49124 49126 49128 49129 49130 49149 49150 491518.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/VII/252?format=asciiOpticaldefaultVII/252/dr5qsoThe SDSS Quasar Catalog IV, DR5zRedshiftsrc.redshiftfloatObjSDSS Object Numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS DR5 Object Designation \linkRole{details from SDSS site} (1)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedumag? SDSS BEST u band PSF magnitude (2)magphot.mag;em.opt.Ufloatnullablee_umagError in B-umagmagstat.error;phot.mag;em.opt.Ufloatgmag? SDSS BEST g band PSF magnitude (2)magphot.mag;em.opt.Bfloatnullablee_gmagError in B-gmagmagstat.error;phot.mag;em.opt.Bfloatrmag? SDSS BEST r band PSF magnitude (2)magphot.mag;em.opt.Rfloatnullablee_rmagError in B-rmagmagstat.error;phot.mag;em.opt.Rfloatimag? SDSS BEST i band PSF magnitude (2)magphot.mag;em.opt.Ifloatnullablee_imagError in B-imagmagstat.error;phot.mag;em.opt.Ifloatzmag? SDSS BEST z band PSF magnitude (2)magphot.mag;em.opt.Ifloatnullablee_zmagError in B-zmagmagstat.error;phot.mag;em.opt.IfloatAuGalactic absorption in u band (3)magphys.absorptionfloatlogHILog of Galactic HI column densitylog(cm**-2)phys.columnDensity;pos.galacticfloatF20cm? FIRST Peak flux density (ABmag) at 20cm (4)magphot.flux.density;em.radio.750-1500MHzfloatnullablew_F20cmThe S/N ratio for FIRST fluxstat.weightfloatsepRSDSS/FIRST separationarcsecpos.angDistancefloatfRo[0/1] FIRST flux at optical position but no FIRST source flag (1=detectable flux)meta.codeintfR1[0/1] FIRST source 2-30" from optical position flag (1=source exists)meta.codeintlogX? RASS BSC/FSC full band count rate (5)log(count.s**-1)phot.count;em.X-rayfloatnullablew_logXThe S/N ratio for RASS count ratestat.weightfloatsepXSDSS/RASS separationarcsecpos.angDistancefloatJmag? 2MASS J band magnitude (6)magphot.mag;em.IR.Jfloatnullablee_Jmag? Error in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H band magnitude (6)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKmag? 2MASS K band magnitude (6)magphot.mag;em.IR.Kfloatnullablee_Kmag? Error in Kmagmagstat.error;phot.mag;em.IR.KfloatnullablesepHSDSS/2MASS separationarcsecpos.angDistancefloatiMAGAbsolute i band magnitude (7)magphys.magAbsfloatD(g-i)? Offset of quasar (g-i) from distribution (g-i) mode (8)magstat.fit.residualfloatnullableMph[0/1] Morphology flag (1=extended source)meta.codeintS1[0/1] SCIENCEPRIMARY flag (1=SCIENCEPRIMARY)meta.codeintmode[0-3] SDSS MODE (blends, overlapping scans) flag (9)meta.code.classintutf[0/1] Uniform target selection flag (10)meta.codeintTflagBBEST target selection flagmeta.codeintLz[0/1] Low-z Quasar (color selection only) target flag (1=targeted as Low-z Quasar)meta.codeintHz[0/1] High-z Quasar (color selection only) target flag (1=targeted as High-z Quasar)meta.codeintfR[0/1] FIRST target flag (1=targeted)meta.codeintfX[0/1] ROSAT target flag (1=targeted)meta.codeintfS[0/1] Serendipity target flag (1=targeted)meta.codeintf*[0/1] Star target flag (1=targeted)meta.codeintfG[0/1] Galaxy target flag (1=targeted)meta.codeintrunSDSS Imaging Run Number for photometric measurementsmeta.idintMJD-ImModified Julian Date of imaging observationdtime.epochintMJD-SpModified Julian Date of spectroscopic observationdtime.epochintPnumSpectroscopic Plate Numberobs.fieldintFnumSpectroscopic Fiber Numbermeta.noteintrerunSDSS Photometric Processing Rerun Numbermeta.idintCamSDSS Camera Column Numbermeta.id;instrintFrameSDSS Frame Numberobs.fieldintTflagTARGET target selection flagmeta.codeintLzT[0/1] Low-z Quasar (color selection only) target flag (1=targeted as Low-z Quasar)meta.codeintHzT[0/1] High-z Quasar (color selection only) target flag (1=targeted as High-z Quasar)meta.codeintfRT[0/1] FIRST target flag (1=targeted)meta.codeintfXT[0/1] ROSAT target flag (1=targeted)meta.codeintfST[0/1] Serendipity target flag (1=targeted)meta.codeintf*T[0/1] Star target flag (1=targeted)meta.codeintfGT[0/1] Galaxy target flag (1=targeted)meta.codeintuPSF? SDSS TARGET u band PSF magnitude (2)magphot.mag;em.opt.Ufloatnullablee_uPSF? Error in T-umagmagstat.errorfloatnullablegPSF? SDSS TARGET g band PSF magnitude (2)magphot.mag;em.opt.Bfloatnullablee_gPSF? Error in T-gmagmagstat.errorfloatnullablerPSF? SDSS TARGET r band PSF magnitude (2)magphot.mag;em.opt.Rfloatnullablee_rPSF? Error in T-rmagmagstat.errorfloatnullableiPSF? SDSS TARGET i band PSF magnitude (2)magphot.mag;em.opt.Ifloatnullablee_iPSF? Error in T-imagmagstat.errorfloatnullablezPSF? SDSS TARGET z band PSF magnitude (2)magphot.mag;em.opt.Ifloatnullablee_zPSF? Error in T-zmagmagstat.errorfloatnullableSpOIDThe 64-bit integer Spectroscopic Identification flagmeta.idcharPrevObject Name if previously published (11)meta.idcharBHDisplay the black hole mass estimates from Shen et al. 2008, Cat. J/ApJ/680/169meta.ref.urlcharDR5Display the detailed photometry from SDSS-DR5 (Cat. II/276)meta.ref.urlchar2MASSDisplay the 2MASS datameta.ref.urlcharXDisplay the X-ray sources closer than 1'meta.ref.urlcharRadioDisplay the radio sources closer than 1'meta.ref.urlchar