J/AJ/126/2579ivo://CDS.VizieR/J/AJ/126/2579doi:10.26093/cds/vizier.51262579CDSSchneider D.P.Fan X.Hall P.B.Jester S.Richards G.T.Stoughton C.,Strauss M.A.Subbarao M.Vanden Berk D.E.Anderson S.F.Brandt W.N.,Gunn J.E.Gray J.Trump J.R.Voges W.Yanny B.Bahcall N.A.,Blanton M.R.Boroski W.N.Brinkmann J.Brunner R.Burles S.,Castander F.J.Doi M.Eisenstein D.Frieman J.A.Fukugita M.,Heckman T.M.Hennessy G.S.Ivezic Z.Kent S.Knapp G.R.Lamb D.Q.,Lee B.C.Loveday J.Lupton R.H.Margon B.Meiksin A.Munn J.A.,Newberg H.J.Nichol R.C.Niederste-Ostholt M.Pier J.R.Richmond M.W.,Rockosi C.M.Saxe D.H.Schlegel D.J.Szalay A.S.Thakar A.R.,Uomoto A.York D.G.2023-04-06T16:50:59Z2009-10-30T07:58:20ZCDS support team

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

cds-question@unistra.frquasarssurveysvisible-astronomysloan-photometryredshiftedWe present the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 16,713 objects in the SDSS First Data Release that have luminosities larger than M_i_=-22 (in a cosmology with H_0_=70km/s/Mpc, {Omega}_M_=0.3, and {Omega}_{Lambda}_=0.7), have at least one emission line with FWHM larger than 1000km/s, and have highly reliable redshifts. The area covered by the catalog is 1360{deg}^2^. The quasar redshifts range from 0.08 to 5.41, with a median value of 1.43. 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 some radio, near-infrared, and X-ray emission properties of the quasars, when available, from other large-area surveys. Calibrated digital spectra of all objects in the catalog, covering the wavelength region 3800-9200{AA} at a spectral resolution of 1800-2100, are available. This publication supersedes the first SDSS Quasar Catalog (2002, Cat. <J/AJ/123/567>), which was based on material from the SDSS Early Data Release. A summary of corrections to current quasar databases is also provided. The majority of the objects were found in SDSS commissioning data using a multicolor selection technique. Since the quasar selection algorithm was undergoing testing during the entire observational period covered by this catalog, care must be taken when assembling samples from the catalog for use in statistical studies. A total of 15786 objects (94%) in the catalog were discovered by the SDSS; 12173 of the SDSS discoveries are reported here for the first time. Included in the new discoveries are five quasars brighter than i=16.0 and 17 quasars with redshifts larger than 4.5.2003AJ....126.2579Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/126/2579CatalogResearchIsServedByTAP VizieR generic serviceIsPreviousVersionOfVII/243IsServedByConesearch servicerelated-toJ/AJ/123/567 : SDSS quasar catalog. I: Early Data Release (Schneider+, 2002)J/AJ/130/367 : SDSS quasar catalog. III Third data release (Schneider+ 2005)J/AJ/125/1817 : SDSS Early-Type Galaxies Catalog (Bernardi+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/126/2579https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/126/2579http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/126/2579https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/126/2579https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/126/2579http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/126/2579GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/126/2579/table1 (The SDSS Quasar Catalog II)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/2579/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/2579/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/2579/table1?GETtext/xml+votable180.050000true0.03927306-10.464431110.0055555555555555564/413 454-456 469 512 745 1623 1628 1638 1685 5/136 138 1024 1589 1596-1597 1630-1632 1634-1635 1638-1641 1644 1650-1651 1802-1803 1805-1807 1815 1828-1830 1840-1841 1844-1845 1864 1866-1867 1871 1880-1882 1888-1889 2052 2056-2057 2401 2403 2409 2411 2485 2495-2498 2518 2521 2523-2524 2526 2530 2536 2545 2547-2548 2550 2553 2555 2837 2839 2845 2865 2867 2870 2873 2876 2897-2899 2957-2959 2961 2963 2968 2970 2987-2988 4303 4307-4310 4312-4314 4325 4330 4373-4375 4377-4380 4387 4389-4390 4393-4394 4416 4437-4438 4441-4442 4453-4454 4457-4458 4501-4502 4505-4506 4517-4518 4521-4522 4575 4597-4598 4601-4602 4687 4693-4694 4697-4698 4709 4737 4933-4935 4937 4939-4940 5461-5463 5679 5761-5764 5768 5797-5799 5801-5802 6485-6487 6489-6491 6501-6503 6505-6510 6516-6518 6520-6521 6541 6543 6545-6550 6556 6558 6561 6563-6566 6569-6571 6576-6577 6593 6737 6745 6747-6750 6757-6758 6761-6763 6766 6805-6807 6809-6814 6822-6823 6825-6830 6832-6834 6850 6912-6914 6916 7786 7829-7830 7833-7834 7845-7846 7849-7851 7855 7857 7859-7860 7864 9179 9181-9183 9191 9193-9197 9200-9202 12247 12252-12254 12271 12273-12276 12280 6/0-2 521 523-524 526-527 548-550 556 640 4100-4102 4104-4106 4112 6134 6137-6140 6142-6143 6267 6270-6271 6353-6355 6363 6365-6367 6511 6532 6534 6546-6547 6550-6551 6580-6582 6594-6595 6597-6599 6624-6626 6628-6629 6640-6641 6644-6645 7202-7203 7206-7207 7217-7219 7246-7247 7257-7259 7324-7325 7327-7329 7368-7369 7371-7374 7384-7385 7388 7479-7480 7482 7501-7503 7532-7533 7536-7538 7540 7568 7573 8212 8214 8216-8218 8232-8234 8320 9519 9530 9601 9603 9609 9611 9616 9618 9624 9626 9633 9635 9641-9643 9648 9650 9656 9658 9823 9845 9948-9950 9975 9977 9979 9996 10016-10017 10061-10063 10067 10114 10152-10154 10177 10179 10185 10187 10209 10211 10217 10219 10224-10226 10232 10234 11344-11346 11355 11373-11375 11377 11379 11384 11386-11387 11465 11467 11472 11474 11484 11486 11489-11491 11496-11497 11500-11501 11508 11520 11522 11528 11530 11585-11587 11600 11602 11608 11610 11616-11617 11823 11825-11827 11849 11851 11856 11858 11864 11876-11878 11909-11911 11913 11916-11917 11919 11941-11943 11945-11947 11956 11960 11968-11970 16887 16891 16893-16895 17149 17207 17211 17223 17244 17246 17260-17262 17264 17296-17297 17299 17308-17309 17314-17315 17324 17326 17344-17346 17405-17407 17469-17471 17485-17487 17491 17505-17507 17524 17547 17553-17555 17564-17566 17569-17571 17580-17582 17584-17586 17600-17602 17604 17661-17663 17668-17669 17672-17673 17725-17727 17741-17743 17745-17747 17756-17758 17761-17763 17772-17774 17776-17778 17805-17807 17809-17811 17820-17822 17825-17827 17836-17838 17840-17842 17856-17858 17860 17920-17921 17981-17983 17997-17999 18001-18003 18012-18014 18017-18019 18028-18030 18032-18034 18062-18063 18065-18067 18076-18078 18081-18083 18092-18094 18096-18098 18112-18114 18176-18178 18293-18295 18299 18365-18367 18381-18383 18385 18387 18396 18401-18403 18412-18414 18416-18418 18601 18603 18606-18607 18688-18689 18765-18767 18769-18771 18780-18782 18785-18787 18796-18798 18800-18802 18804 18833 18835 18844-18845 18880-18882 18945 18947 18954 18976 18978 19456-19458 19725-19727 19729-19731 19745 19747 19752-19753 19755 19764 19768 19776-19778 19844 21843 21873 21876 22711 22714-22715 22760 22762-22763 23043 23060-23062 23064-23066 23076 23080 23099 23101-23104 23181-23183 23185-23187 23201-23203 23212-23214 23216-23218 23232 23234 25581-25583 25594 25597-25599 25837-25839 25848 25850-25851 25853-25855 25917-25919 25933-25935 25937-25939 25953-25955 25997-25999 26001-26003 26017-26019 26044 26076 26092-26093 26096 26141-26143 26157-26159 26161-26163 26168-26170 26177-26179 26204-26206 26230 26236 26238 26241 26243 26268-26270 26273-26275 26288-26290 26313 26316-26317 26320-26322 26324 26368-26370 26380-26381 26384-26385 26877-26879 26941-26943 26957-26959 26977-26979 26985-26987 27004-27006 27021-27023 27025-27027 27036-27038 27041-27043 27056-27058 27072-27074 27077 27088-27089 27197-27199 27213-27215 27217-27219 27233-27235 27260-27261 27277-27279 27282 27284-27285 27287 27297-27299 27324 27340 27344 27360 27392-27394 27396-27397 27408 27424 27660-27662 27680-27682 29973 30973-30975 31138-31139 31150 31293-31295 31309-31311 31313-31315 31324-31326 31329-31331 31340-31342 31344-31346 31353-31355 31358 31373-31375 31377-31379 31388-31390 31393-31395 31408-31410 31413 31415 31417-31419 31424-31426 31433-31435 31448 31464 31466 31488-31490 36607 36703 36715 36721-36723 36759 36761-36763 36792-36794 36796 36812 36816-36818 36832 36861-36863 40959 45053-45055 48987 49005 49007 49020-49022 49077-49079 49091 49108 49112 49124 49126 49128-491308.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/126/2579?format=asciiOpticaldefaultJ/AJ/126/2579/table1The SDSS Quasar Catalog IIPNumSpectroscopic Plate Numberobs.fieldintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDR1Object Designation (1)meta.id;meta.maincharRAJ2000Right Ascension expressed in degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination expressed in degrees (J2000)degpos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatf_DR1Source of object (2)meta.codeintumagSDSS u band PSF magnitude (3)magphot.mag;em.opt.Ufloate_umagError in umagmagstat.error;phot.mag;em.opt.UfloatgmagSDSS g band PSF magnitude (3)magphot.mag;em.opt.Bfloate_gmagError in gmagmagstat.error;phot.mag;em.opt.BfloatrmagSDSS r band PSF magnitude (3)magphot.mag;em.opt.Rfloate_rmagError in rmagmagstat.error;phot.mag;em.opt.RfloatimagSDSS i band PSF magnitude (3)magphot.mag;em.opt.Ifloate_imagError in imagmagstat.error;phot.mag;em.opt.IfloatzmagSDSS z band PSF magnitude (3)magphot.mag;em.opt.Ifloate_zmagError in zmagmagstat.error;phot.mag;em.opt.IfloatAuGalactic absorption in u band (4)magphys.absorption.galfloatF20cm? FIRST Peak flux density at 20cm (5)magphot.flux.density;em.radio.750-1500MHzfloatnullableF-S/N? S/N ratio for FIRST fluxstat.snrdoublenullableSF-SepThe SDSS/FIRST separationarcsecpos.angDistancefloatlogCtR? RASS (Xray) BSC/FSC full band count rate (6)log(count.s**-1)phot.count;em.X-rayfloatnullableX-S/NS/N ratio for RASS count ratestat.snrfloatSX-SepSDSS/RASS separationarcsecpos.angDistancefloatJmag? 2MASS J band magnitude (7)magphot.mag;em.IR.Jfloatnullablee_Jmag? Error in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H band magnitude (7)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKmag? 2MASS K band magnitude (7)magphot.mag;em.IR.Kfloatnullablee_Kmag? Error in Kmagmagstat.error;phot.mag;em.IR.KfloatnullableS2-SepSDSS/2MASS separationarcsecpos.angDistancefloatiMagAbsolute SDSS i band magnitude (8)magphys.magAbs;em.opt.IfloatBSerend[0,1] BEST Serendipity target flag (11)meta.codeintMFlag[0,1] Morphology flag (9)meta.code;src.morphintPlate[1,13] Target selection in plate drilling (10)meta.codeintTLow-z[0,1] TARGET Low-z Quasar (color selection only) target flag (11)meta.codeintTHigh-z[0,1] TARGET High-z Quasar (color selection only) target flag (11)meta.codeintTFIRST[0,1] TARGET FIRST target flag (11)meta.codeintTROSAT[0,1] TARGET ROSAT target flag (11)meta.codeintTSerend[0,1] TARGET Serendipity target flag (11)meta.codeintTStar[0,1] TARGET Star target flag (11)meta.codeintTGal[0,1] TARGET Galaxy target flag (11)meta.codeintBLow-z[0,1] BEST Low-z Quasar (color selection only) target flag (11)meta.codeintBHigh-z[0,1] BEST High-z Quasar (color selection only) target flag (11)meta.codeintBFIRST[0,1] BEST FIRST target flag (11)meta.codeintBROSAT[0,1] BEST ROSAT target flag (11)meta.codeintBStar[0,1] BEST Star target flag (11)meta.codeintBGal[0,1] BEST Galaxy target flag (11)meta.codeintRNumSDSS Imaging Run Number for BEST photometrymeta.id;obsintB-MJDBEST observation Modified Julian Datetime.epochS-MJDSpectroscopic observation Modified Julian Datetime.epochFNumSpectroscopic Fiber Numbermeta.noteintNameObject Name if previously published (12)meta.idcharFIRSTDisplay the spectrummeta.ref.urlchar2MASSDisplay the spectrummeta.ref.urlcharROSATDisplay the spectrummeta.ref.urlchar