J/AJ/121/31ivo://CDS.VizieR/J/AJ/121/31doi:10.26093/cds/vizier.51210031CDSFan X.Strauss M.A.Richards G.T.Newman J.A.Becker R.H.,Schneider D.P.Gunn J.E.Davis M.White R.L.Lupton R.H.,Anderson J.E.JRAnnis J.Bahcall N.A.Brunner R.J.Csabai I.Doi M.,Fukugita M.Hennessy G.S.Hindsley R.B.Ivezic Z.Knapp G.R.,Mckay T.A.Munn J.A.Pier J.R.Szalay A.S.York D.G.2023-04-06T16:50:42Z2005-05-08T15:54:52ZCDS support team

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

cds-question@unistra.frquasarssurveysThis is the third paper in a series aimed at finding high-redshift quasars from five-color (u'g'r'i'z') imaging data taken along the celestial equator by the Sloan Digital Sky Survey (SDSS) during its commissioning phase. In this paper, we first present the observations of 14 bright, high-redshift quasars (3.66<=z<=4.77, i*<~20) discovered in the SDSS fall equatorial stripe, and the SDSS photometry of two previously known high-redshift quasars in the same region of the sky. Combined with the quasars presented in Paper I (1999AJ....118....1F) and by Schneider et al. (2001AJ....121.1232S), we define a color-selected flux-limited sample of 39 quasars at 3.6<z<5.0 and i*<~20, covering a total effective area of 182deg^2^. From this sample, we estimate the average spectral power-law slope in the rest-frame UV for quasars at z~4 to be -0.79 with a standard deviation of 0.34, and the average rest-frame equivalent width of the Ly{alpha}+N V emission line to be 69{AA} with a standard deviation of 18{AA}. Based on observations obtained with the Sloan Digital Sky Survey, with the Apache Point Observatory 3.5m telescope.2001AJ....121...31Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/121/31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/121/31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/121/31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/121/31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/121/31https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/121/31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/121/31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/121/31/qbright (Bright SDSS High-Redshift Quasars (tables 1 and 3 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/31/qbright?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/31/qbright?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/31/qbright?GETtext/xml+votable180.050000true4.9585833-0.67802780.005555555555555556Cone search capability for table J/AJ/121/31/table4 (Color-selected Sample of 182 deg^2^ in the Fall Equatorial Stripe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/31/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/31/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/31/table4?GETtext/xml+votable180.050000true4.9585833-0.67802780.005555555555555556Cone search capability for table J/AJ/121/31/table7 (Positions and Photometry of Faint SDSS High-Redshift Quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/31/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/121/31/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/121/31/table7?GETtext/xml+votable180.050000true10.4765833-0.49886110.0055555555555555566/0 17662 17743 17745-17746 17752-17753 17756 17765 17776-17777 17809 17812-17813 17818 17821 17840 17842 18006-18007 18010 18022 18024-18025 18032 18062 18069 18076 18176 18178 18769 18786 18790 18836 18840 18842-18845 18865 19458 22946 23126 23145 23154 23181 23188 23191-23192 23196-23197 23203 23206 23209 23212 232962.040811542443644e-19 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/121/31?format=asciiOpticaldefaultJ/AJ/121/31/qbrightBright SDSS High-Redshift Quasars (tables 1 and 3 of paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.intSDSSSDSS object name (G1)charn_SDSSNote about previous reports (2)charzRedshiftfloate_zUncertainty in zfloatumagThe SDSS u'-band asinh magnitude (G3)magfloate_umagThe uncertainty in umagmagfloatgmagThe SDSS g'-band asinh magnitude (G3)magfloate_gmagThe uncertainty in gmagmagfloatrmagThe SDSS r'-band asinh magnitude (G3)magfloate_rmagThe uncertainty in rmagmagfloatimagThe SDSS i'-band asinh magnitude (G3)magfloate_imagThe uncertainty in imagmagfloatzmagThe SDSS z'-band asinh magnitude (G3)magfloate_zmagThe uncertainty in zmagmagfloatRunObservational run numberintE(B-V)The E(B-V)magfloatABmagThe continuum magnitude at 1450 {AA} in the rest frame corrected for Galactic extinctionmagfloate_ABmagThe uncertainty in ABmagmagfloatABMagThe absolute magnitude at 1450 {AA} (G2)magfloatSp-IndexContinuum power0law index where f_{nu}_ {propto} {nu}^Sp-Index^floate_Sp-IndexThe uncertainty in Sp-Indexfloat_RAPosition (from SDSS name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (from SDSS name) (declination part)degpos.eq.dec;meta.mainJ/AJ/121/31/table4Color-selected Sample of 182 deg^2^ in the Fall Equatorial StriperecnoRecord number assigned by the VizieR team. Should Not be used for identification.intSDSSSDSS object name (G1)charzRedshiftfloatABmagThe continuum magnitude at 1450 {AA} in the rest frame corrected for Galactic extinctionmagfloate_ABmagThe uncertainty in ABmagmagfloatABMagThe absolute magnitude at 1450 {AA} (G2)magfloatSp-IndexContinuum power-law index, where f_{nu}_ {propto} {nu}^Sp-Index^floate_Sp-IndexThe uncertainty in Sp-IndexfloatEqWidThe Ly{alpha}+NV (1240{AA}) equivalent width0.1nmfloatProbDetection probability (3)float_RAPosition (from SDSS name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (from SDSS name) (declination part)degpos.eq.dec;meta.mainJ/AJ/121/31/table7Positions and Photometry of Faint SDSS High-Redshift QuasarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intSDSSSDSS object name (G1)charzRedshiftfloate_zUncertainty in zfloatumagThe SDSS u'-band asinh magnitude (G3)magfloate_umagThe uncertainty in umagmagfloatgmagThe SDSS g'-band asinh magnitude (G3)magfloate_gmagThe uncertainty in gmagmagfloatrmagThe SDSS r'-band asinh magnitude (G3)magfloate_rmagThe uncertainty in rmagmagfloatimagThe SDSS i'-band asinh magnitude (G3)magfloate_imagThe uncertainty in imagmagfloatzmagThe SDSS z'-band asinh magnitude (G3)magfloate_zmagThe uncertainty in zmagmagfloatRunObservational run numberint_RAPosition (from SDSS name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (from SDSS name) (declination part)degpos.eq.dec;meta.main