VII/279ivo://CDS.VizieR/VII/279CDSParis I.Petitjean P.Ross N.P.Myers A.D.Aubourg E.Streblyanska A.,Bailey S.Armengaud E.Palanque-Delabrouille N.Yeche C.Hamann F.,Strauss M.A.Albareti F.D.Bovy J.Bizyaev D.Brandt W.N.Brusa M.,Buchner J.Comparat J.Croft R.A.C.Dwelly T.Fan X.Font-Ribera A.,Ge J.Georgakakis A.Hall P.B.Jiang L.Kinemuchi K.Malanushenko E.,Malanushenko V.Mcmahon R.G.Menzel M.-L.Merloni A.Nandra K.,Noterdaeme P.Oravetz D.Pan K.Pieri M.M.Prada F.Salvato M.,Schlegel D.J.Schneider D.P.Simmons A.Viel M.Weinberg D.H.Zhu L.2019-02-01T07:59:19Z2017-06-30T14:26:14ZCDS support team

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

cds-question@unistra.frsurveysquasarsactive-galactic-nucleispectroscopyWe present the Data Release 12 Quasar catalog (DR12Q) from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky SurveyIII. This catalog includes all SDSS-III/BOSS objects that were spectroscopically targeted as quasar candidates during the full survey and that are confirmed as quasars via visual inspection of the spectra, have luminosities M_i_[z=2]< -20.5 (in a {Lambda}CDM cosmology with H_0_=70km/s/Mpc, {Omega}_M_=0.3, and {Omega}_{Lambda}_=0.7), and either display at least one emission line with a full width at half maximum (FWHM) larger than 500km/s or, if not, have interesting/complex absorption features. The catalog also includes previously known quasars (mostly from SDSS-I andII) that were reobserved by BOSS. The catalog contains 297 301 quasars (272 026 are new discoveries since the beginning of SDSS-III) detected over 9376deg^2^ with robust identification and redshift measured by a combination of principal component eigenspectra. The number of quasars with z>2.15 (184 101, of which 167 742 are new discoveries) is about an order of magnitude greater than the number of z>2.15 quasars known prior to BOSS. Redshifts and FWHMs are provided for the strongest emission lines (CIV, CIII], MgII). The catalog identifies 29 580 broad absorption line quasars and lists their characteristics. For each object, the catalog presents five-band (u, g, r, i, z) CCD-based photometry with typical accuracy of 0.03mag together with some information on the optical morphology and the selection criteria. When available, the catalog also provides information on the optical variability of quasars using SDSS and Palomar Transient Factory multi-epoch photometry. The catalog also contains X-ray, ultraviolet, near-infrared, and radio emission properties of the quasars, when available, from other large-area surveys. The calibrated digital spectra, covering the wavelength region 3600-10 500{AA} at a spectral resolution in the range 1300<R<2500, can be retrieved from the SDSS Catalog Archive Server. We also provide a supplemental list of an additional 4841 quasars that have been identified serendipitously outside of the superset defined to derive the main quasar catalog.2017A&A...597A..79Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/VII/279CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/270 : SDSS quasar catalog: tenth data release (Paris+, 2014)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VII/279https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VII/279http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VII/279https://vizier.cds.unistra.fr/viz-bin/votable?-source=VII/279https://vizier.iucaa.in/viz-bin/votable?-source=VII/279http://vizieridia.saao.ac.za/viz-bin/votable?-source=VII/279GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VII/279/dr12qspb (Supplementary list that contains quasars identified on bad plates)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/279/dr12qspb?https://vizier.iucaa.in/viz-bin/conesearch/VII/279/dr12qspb?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/279/dr12qspb?GETtext/xml+votable180.050000true0.031620.495351940.005555555555555556Cone search capability for table VII/279/dr12qsp (Supplementary list that contains serendipitous quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/279/dr12qsp?https://vizier.iucaa.in/viz-bin/conesearch/VII/279/dr12qsp?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/279/dr12qsp?GETtext/xml+votable180.050000true0.00197806-0.451088060.005555555555555556Cone search capability for table VII/279/dr12q (SDSS-DR12 Quasar Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/279/dr12q?https://vizier.iucaa.in/viz-bin/conesearch/VII/279/dr12q?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/279/dr12q?GETtext/xml+votable180.050000true0.0018980617.773738890.005555555555555556Cone search capability for table VII/279/dr12qbal (Detailed properties of BAL quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/279/dr12qbal?https://vizier.iucaa.in/viz-bin/conesearch/VII/279/dr12qbal?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/279/dr12qbal?GETtext/xml+votable180.050000true0.0059119420.012258060.0055555555555555561/5 8 10 27 2/16 17 19 25 38 75 76 77 78 103 107 3/32 34 72 73 75 112 113 114 116 145 146 147 150 176 177 178 184 208 276 277 278 281 282 283 284 286 287 295 299 316 317 318 407 411 423 427 491 4/40 42 43 46 132 133 134 140 160 296 297 299 385 388 389 391 397 460 461 468 469 472 576 577 579 592 594 595 624 626 632 634 716 718 720 744 745 746 772 788 789 791 797 836 837 838 840 841 848 1078 1084 1085 1087 1095 1101 1102 1103 1116 1118 1121 1122 1123 1140 1142 1143 1173 1174 1175 1177 1178 1179 1189 1190 1191 1193 1195 1276 1367 1373 1375 1397 1621 1622 1623 1625 1626 1627 1637 1638 1639 1641 1642 1643 1685 1686 1687 1689 1690 1691 1701 1702 1703 1705 1706 1707 1961 1962 1963 1976 1978 1979 1982 1983 2026 2027 2030 2031 2299 2302 5/2 8 10 138 139 164 166 167 190 540 542 568 576 644 648 650 1192 1193 1195 1537 1549 1560 1561 1563 1585 1596 1597 1599 1684 1685 1729 1732 1733 1848 1849 1850 1852 1853 1854 1880 1881 1896 2312 2314 2315 2372 2374 2375 2500 2502 2508 2510 2532 2534 2540 2868 2869 2870 2876 2878 2888 2889 2890 2960 2961 2962 2968 2969 2970 2988 3077 3079 3092 3093 3094 3096 3141 3160 3161 3163 3185 3196 3197 3199 3356 3357 3358 3368 3369 3376 3377 3396 4317 4318 4319 4325 4345 4347 4373 4374 4375 4377 4379 4391 4397 4401 4402 4403 4468 4469 4470 4476 4478 4481 4483 4566 4669 4670 4671 4685 4686 4687 4689 4690 4691 4705 4706 4707 4749 4750 4751 4753 4754 4755 4769 4770 4771 4776 4777 4779 5108 5109 5110 5112 5113 5114 5461 5463 5465 5466 5467 5477 5479 5488 5489 5491 5497 5499 5585 5596 5597 5599 5621 5623 6398 6399 6461 6462 6463 6477 6478 6479 6481 6482 6483 6497 6498 6499 6541 6542 6543 6545 6546 6547 6561 6562 6563 6717 6718 6719 6733 6734 6735 6737 6738 6739 6753 6754 6755 6797 6798 6799 6801 6802 6803 6817 6819 7839 7843 7882 7908 7910 7921 7922 7923 7924 7926 7927 8098 8099 8102 8103 8114 8115 8118 8119 8162 8168 8170 8171 8174 9191 9194 9195 9200 9202 9214 11261 11262 11263 6/0 2 3 12 14 15 36 37 38 128 544 546 662 663 712 714 715 754 755 764 766 767 2164 2165 2166 2172 2173 2174 2256 2257 2258 2264 2276 2280 2281 2282 2310 2312 2313 2314 2336 2580 2581 2582 2584 2585 2586 2596 2597 2598 2604 2688 4776 4777 4779 6157 6159 6181 6192 6193 6204 6205 6248 6249 6251 6337 6338 6339 6345 6348 6349 6351 6393 6394 6395 6912 6913 6914 6976 6977 6980 6981 6992 6993 6996 6997 7404 7405 7406 7420 7421 7422 7528 7529 7530 7532 7533 7536 7537 7538 7540 7568 7569 7570 7572 7573 7588 7592 7680 7681 7684 7685 7696 7697 7701 7744 9252 9253 9255 9492 9494 9495 9568 9570 9576 9578 9664 9666 9672 9674 10004 10005 10006 10012 10014 10036 10038 10044 10046 10168 10169 10170 11484 11486 11536 11538 11544 11546 11564 11565 11566 11568 11648 11649 11650 11652 11852 11853 11854 11856 11858 11864 11884 11886 11956 11960 11968 11969 11970 12293 12304 12305 12307 12313 12340 12341 12343 12380 12381 12388 12392 12544 12545 12546 12560 12561 12563 12572 12573 12575 12597 12599 12648 12649 12651 12737 12748 12749 12751 12773 12792 12793 12795 13436 13437 13438 13480 13484 13488 13489 13492 13512 13513 13514 13520 13521 13588 13589 13592 13600 13601 13602 13604 13632 17211 17213 17214 17215 17230 17243 17245 17246 17247 17265 17266 17267 17297 17299 17305 17308 17309 17311 17333 17376 17377 17486 17487 17491 17505 17512 17579 17582 17583 17597 17598 17599 17601 17602 17603 17884 17908 17910 17911 17916 17921 17928 17930 17931 18256 18258 18270 18271 18653 18654 18655 18669 18670 18671 18673 18674 18675 18717 18718 18719 18733 18734 18735 18737 18738 18739 18753 18754 18755 18817 18818 18819 18973 18974 18975 18989 18990 18991 18993 18994 18995 19009 19010 19011 19073 19074 19075 19113 19115 20464 21823 21839 21840 21841 21843 21849 21850 21851 21859 21907 21913 21915 21940 21960 21961 21963 21995 22349 22351 22373 22393 22395 22481 22517 22519 22525 22873 23059 25583 25586 25587 25590 25821 25822 25823 25837 25838 25839 25841 25842 25843 25886 25887 25901 25902 25903 25905 25906 25907 25923 25985 25986 25987 26143 26157 26159 26163 26177 26179 26242 26243 26846 26847 26862 26863 26865 26867 26911 26926 26927 26931 26947 27009 27010 27011 27167 27183 27187 27201 27203 27267 27273 27274 27275 31291 31292 31294 31295 31338 31343 31351 31354 31355 31367 31370 31371 31522 31534 31535 31545 31546 31547 31548 31550 31551 31598 31599 31610 31636 31638 31644 31646 31647 31681 31682 31683 31700 31702 31703 32386 32390 32391 32451 32471 32642 32678 32679 32690 32702 36759 36761 36762 36763 36773 36774 36775 36806 36812 36814 36815 36848 36850 36851 36860 36862 36863 40927 40949 40950 40951 40957 40958 40959 45023 45039 45043 49117 49119 491418.157980699529898e-21 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/VII/279?format=asciidefaultVII/279/dr12qspbSupplementary list that contains quasars identified on bad platesMJDSpectroscopic MJD (MJD)time.epochintPlateSpectroscopic Plate number (PLATE)obs.fieldintDEJ2000Declination (J2000) (DEC)degpos.eq.dec;meta.mainTHINGIDThing_ID (THING_ID)meta.idprimarye_imagError in PSF magnitude in i band (ERR_PSFMAGi)magstat.error;phot.mag;em.opt.IfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) corrected by CDS (SDSS_NAMEc) (G1)meta.id;meta.maincharSDSSoSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) (SDSS_NAME) (G1)meta.idcharRAJ2000Right Ascension (J2000) (RA)degpos.eq.ra;meta.mainFiberSpectroscopic Fiber number (FIBERID)phot.mag;em.opt.Iintz.vRedshift from visual inspection (Z_VI)src.redshift;pos.heliocentricdoublez.b? Redshift from BOSS pipeline (Z_PIPE)src.redshift;pos.heliocentricdoublenullablee_z.b[]? Error on BOSS pipeline redshift (error codes -4, -5, -6) (ERR_ZPIPE)stat.error;src.redshiftdoublenullablef_z.bZWARNING flag|(ZWARNING) (G4)meta.codeintMorphSDSS morphology flag 0=point source 1=extended|(SDSS_MORPHO)src.class.starGalaxyintBtarg1BOSS target flag for main survey (BOSS_TARGET1)meta.idAtarg1BOSS target flag for ancillary programs (ANCILLARY_TARGET1)meta.idAtarg2BOSS target flag for ancillary programs (ANCILLARY_TARGET2)meta.ideBtarg0Target selection flag for eBOSS pilot survey (EBOSS_TARGET0)meta.idBAL-VIBAL flag from visual inspection|(BAL_FLAG_VI)meta.codeintobjIDSDSS Object Identification Number|(OBJ_ID)meta.idcharFu? PSF flux in u band (not corrected for Galactic extinction) in nnomggies (PSFFLUXu)(G2)3.63uJyphot.mag;em.opt.UdoublenullableFg? PSF flux in g band (not corrected for Galactic extinction) in nnomggies (PSFFLUXg)(G2)3.63uJyphot.mag;em.opt.BdoublenullableFr? PSF flux in r band (not corrected for Galactic extinction) in nnomggies (PSFFLUXr)(G2)3.63uJyphot.mag;em.opt.RdoublenullableFi? PSF flux in i band (not corrected for Galactic extinction) in nnomggies (PSFFLUXi)(G2)3.63uJyphot.mag;em.opt.IdoublenullableFz? PSF flux in z band (not corrected for Galactic extinction) in nnomggies (PSFFLUXz)(G2)3.63uJyphot.mag;em.opt.IdoublenullableIVFuInverse variance of PSF flux in u band in nnomggies (IVAR_PSFFLUXu) (G2)3.63uJyphot.mag;em.opt.UdoubleIVFgInverse variance of PSF flux in g band in nnomggies (IVAR_PSFFLUXg) (G2)3.63uJyphot.mag;em.opt.BdoubleIVFrInverse variance of PSF flux in r band in nnomggies (IVAR_PSFFLUXr) (G2)3.63uJyphot.mag;em.opt.RdoubleIVFiInverse variance of PSF flux in i band in nnomggies (IVAR_PSFFLUXi) (G2)3.63uJyphot.mag;em.opt.IdoubleIVFzInverse variance of PSF flux in z band in nnomggies (G2) (IVAR_PSFFLUXz)3.63uJyphot.mag;em.opt.IdoubleumagPSF magnitude in u band (not corrected for Galactic extinction) (PSFMAGu)magphot.mag;em.opt.UfloatgmagPSF magnitude in g band (not corrected for Galactic extinction) (PSFMAGg)magphot.mag;em.opt.BfloatrmagPSF magnitude in r band (not corrected for Galactic extinction) (PSFMAGr)magphot.mag;em.opt.RfloatimagPSF magnitude in i band (not corrected for Galactic extinction) (PSFMAGi)magphot.mag;em.opt.IfloatzmagPSF magnitude in z band (not corrected for Galactic extinction) (PSFMAGz)magphot.mag;em.opt.Ifloate_umagError in PSF magnitude in u band (ERR_PSFMAGu)magstat.error;phot.mag;em.opt.Ufloate_gmagError in PSF magnitude in g band (ERR_PSFMAGg)magstat.error;phot.mag;em.opt.Bfloate_rmagError in PSF magnitude in r band (ERR_PSFMAGr)magstat.error;phot.mag;em.opt.Rfloate_zmagError in PSF magnitude in z band (ERR_PSFMAGz)magstat.error;phot.mag;em.opt.IfloatExtuGalactic extinction in u band (EXTINCTIONu) (G8)magphys.absorptionfloatExtgGalactic extinction in g band (EXTINCTIONg) (G8)magphys.absorptiondoubleExtrGalactic extinction in r band (EXTINCTIONr) (G8)magphys.absorptiondoubleExtiGalactic extinction in i band (EXTINCTIONi) (G8)magphys.absorptiondoubleExtzGalactic extinction in z band (EXTINCTIONz) (G8)magphys.absorptiondoubleDR12Display the SDSS data for this quasarmeta.ref.urlcharVII/279/dr12qspSupplementary list that contains serendipitous quasarsSimbadNameSimbad column added by the CDSmeta.idchare_umagError in PSF magnitude in u band (ERR_PSFMAGu)magstat.error;phot.mag;em.opt.UfloatMJDSpectroscopic MJD (MJD)time.epochintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) corrected by CDS (SDSS_NAMEc) (G1)meta.id;meta.maincharSDSSoSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) (SDSS_NAME) (G1)meta.idcharRAJ2000Right Ascension (J2000) (RA)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (DEC)degpos.eq.dec;meta.mainTHINGIDThing_ID (THING_ID)meta.idprimaryPlateSpectroscopic Plate number (PLATE)obs.fieldintFiberSpectroscopic Fiber number (FIBERID)phot.mag;em.opt.Iintz.vRedshift from visual inspection (Z_VI)src.redshift;pos.heliocentricdoublez.b? Redshift from BOSS pipeline (Z_PIPE)src.redshift;pos.heliocentricdoublenullablee_z.b[]? Error on BOSS pipeline redshift (error codes -4, -5, -6) (ERR_ZPIPE)stat.error;src.redshiftdoublenullablef_z.bZWARNING flag|(ZWARNING) (G4)meta.codeintMorphSDSS morphology flag 0=point source 1=extended|(SDSS_MORPHO)src.class.starGalaxyintBtarg1BOSS target flag for main survey (BOSS_TARGET1)meta.idAtarg1BOSS target flag for ancillary programs (ANCILLARY_TARGET1)meta.idAtarg2BOSS target flag for ancillary programs (ANCILLARY_TARGET2)meta.ideBtarg0Target selection flag for eBOSS pilot survey (EBOSS_TARGET0)meta.idBAL-VIBAL flag from visual inspection|(BAL_FLAG_VI)meta.codeintobjIDSDSS Object Identification Number|(OBJ_ID)meta.idcharFu? PSF flux in u band (not corrected for Galactic extinction) in nnomggies (PSFFLUXu)(G2)3.63uJyphot.mag;em.opt.UdoublenullableFg? PSF flux in g band (not corrected for Galactic extinction) in nnomggies (PSFFLUXg)(G2)3.63uJyphot.mag;em.opt.BdoublenullableFr? PSF flux in r band (not corrected for Galactic extinction) in nnomggies (PSFFLUXr)(G2)3.63uJyphot.mag;em.opt.RdoublenullableFi? PSF flux in i band (not corrected for Galactic extinction) in nnomggies (PSFFLUXi)(G2)3.63uJyphot.mag;em.opt.IdoublenullableFz? PSF flux in z band (not corrected for Galactic extinction) in nnomggies (PSFFLUXz)(G2)3.63uJyphot.mag;em.opt.IdoublenullableIVFuInverse variance of PSF flux in u band in nnomggies (IVAR_PSFFLUXu) (G2)3.63uJyphot.mag;em.opt.UdoubleIVFgInverse variance of PSF flux in g band in nnomggies (IVAR_PSFFLUXg) (G2)3.63uJyphot.mag;em.opt.BdoubleIVFrInverse variance of PSF flux in r band in nnomggies (IVAR_PSFFLUXr) (G2)3.63uJyphot.mag;em.opt.RdoubleIVFiInverse variance of PSF flux in i band in nnomggies (IVAR_PSFFLUXi) (G2)3.63uJyphot.mag;em.opt.IdoubleIVFzInverse variance of PSF flux in z band in nnomggies (G2) (IVAR_PSFFLUXz)3.63uJyphot.mag;em.opt.IdoubleumagPSF magnitude in u band (not corrected for Galactic extinction) (PSFMAGu)magphot.mag;em.opt.UfloatgmagPSF magnitude in g band (not corrected for Galactic extinction) (PSFMAGg)magphot.mag;em.opt.BfloatrmagPSF magnitude in r band (not corrected for Galactic extinction) (PSFMAGr)magphot.mag;em.opt.RfloatimagPSF magnitude in i band (not corrected for Galactic extinction) (PSFMAGi)magphot.mag;em.opt.IfloatzmagPSF magnitude in z band (not corrected for Galactic extinction) (PSFMAGz)magphot.mag;em.opt.Ifloate_gmagError in PSF magnitude in g band (ERR_PSFMAGg)magstat.error;phot.mag;em.opt.Bfloate_rmagError in PSF magnitude in r band (ERR_PSFMAGr)magstat.error;phot.mag;em.opt.Rfloate_imagError in PSF magnitude in i band (ERR_PSFMAGi)magstat.error;phot.mag;em.opt.Ifloate_zmagError in PSF magnitude in z band (ERR_PSFMAGz)magstat.error;phot.mag;em.opt.IfloatExtuGalactic extinction in u band (EXTINCTIONu) (G8)magphys.absorptionfloatExtgGalactic extinction in g band (EXTINCTIONg) (G8)magphys.absorptiondoubleExtrGalactic extinction in r band (EXTINCTIONr) (G8)magphys.absorptiondoubleExtiGalactic extinction in i band (EXTINCTIONi) (G8)magphys.absorptiondoubleExtzGalactic extinction in z band (EXTINCTIONz) (G8)magphys.absorptiondoubleDR12Display the SDSS data for this quasarmeta.ref.urlcharVII/279/dr12qSDSS-DR12 Quasar CatalogSimbadNameSimbad column added by the CDSmeta.idcharGALEXGALEX match (GALEX_MATCHED)meta.codeintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) corrected by CDS (SDSS_NAMEc) (G1)meta.id;meta.maincharSDSSoSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) (SDSS_NAME) (G1)meta.idcharRAJ2000Right Ascension (J2000) (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (DEC)degpos.eq.dec;meta.mainindexedTHINGIDThing_ID (unique identifier of SDSS sources) (THING_ID)meta.idprimaryPlateSpectroscopic Plate number (PLATE)obs.fieldintMJDSpectroscopic MJD (MJD)time.epochintFiberSpectroscopic Fiber number (FIBERID)phot.mag;em.opt.Iintz.vRedshift from visual inspection (Z_VI)src.redshift;pos.heliocentricdoublez.b? Redshift from BOSS pipeline (Z_PIPE)src.redshift;pos.heliocentricdoublenullablee_z.b[]? Error on BOSS pipeline redshift (error codes -4, -5, -6) (ERR_ZPIPE)stat.error;src.redshiftdoublenullablef_z.bZWARNING flag (ZWARNING) (G3)meta.codeintz.PCARefined PCA redshift (Z_PCA) (G4)src.redshift;pos.heliocentricdoublee_z.PCA? Error on refined PCA redshift (ERR_ZPCA)stat.error;src.redshiftdoublenullableqContEstimator of the PCA continuum quality (PCA_QUAL)meta.code.qualdoublezCIVRedshift of CIV emission line (Z_CIV)src.redshift;pos.heliocentricfloatzCIIIRedshift of C iii] emission complex (Z_CIII)src.redshift;pos.heliocentricfloatzMgIIRedshift of Mg ii emission line (Z_MGII)src.redshift;pos.heliocentricfloatMorphSDSS morphology flag 0=point source 1=extended (SDSS_MORPHO)src.class.starGalaxyintW(AlIIIt)? Rest frame equivalent width of the AlIII] trough (REW_ALIII)0.1nmspect.line.eqWidthdoublenullableBtarg1BOSS target flag for main survey (BOSS_TARGET1) (G5)meta.idAtarg1BOSS target flag for ancillary programs (ANCILLARY_TARGET1) (G5)meta.idAtarg2BOSS target flag for ancillary programs (ANCILLARY_TARGET2) (G5)meta.ideBtarg0Target selection flag for the SDSS-IV/eBOSS pilot survey (EBOSS_TARGET0)meta.idNspBOSSNumber of additional spectra available in SDSS-III/BOSS (NSPEC_BOSS)meta.numberintf7[0/1] 1 if the quasar is known from DR7 (SDSS_DR7)meta.codeintPlate7? SDSS-DR7 spectroscopic Plate number if the quasar is known from DR7 (PLATE_DR7)obs.fieldintnullableMJD7? SDSS-DR7 spectroscopic MJD if the quasar is known from DR7 (MJD_DR7)time.epochintnullableFiber7? SDSS-DR7 spectroscopic Fiber number if the quasar is known from DR7 (FIBERID_DR7)phot.mag;em.opt.IintnullableUS[0/2] Uniform sample flag (UNIFORM) (G6)meta.codeintalphanuSpectral index measurement (ALPHA_NU)spect.indexdoubleSNRSpecMedian signal-to-noise ratio over the whole spectrum (SNR_SPEC)stat.snrfloatSNR1700Median signal-to-noise ratio in the window 1650-1750{AA} (rest frame) (SNR_1700)stat.snrfloatSNR3000Median signal-to-noise ratio in the window 2950-3050{AA} (rest frame) (SNR_3000)stat.snrfloatSNR5150Median signal-to-noise ratio in the window 5100-5250{AA} (rest frame) (SNR_5150)stat.snrfloatFW(CIV)? FWHM of CIV emission line (FWHM_CIV)km/sspect.line.widthfloatnullableHW(CIV)b? Blue HWHM of CIV emission line (BHWHM_CIV)km/sspect.line.widthfloatnullableHW(CIV)r? Red HWHM of CIV emission line (RHWHM_CIV)km/sspect.line.widthfloatnullableA(CIV)Amplitude of CIV emission line in units of median rms pixel noise (AMP_CIV)phot.flux.density;arith.ratiofloatW(CIV)? Rest frame equivalent width of CIV emission line in {AA} (REWE_CIV)0.1nmspect.line.eqWidthdoublenullablee_W(CIV)? Uncertainty on the rest frame equivalent width of CIV emission line (ERR_REWE_CIV)0.1nmstat.errordoublenullableFW(CIII)? FWHM of CIII] emission complex (FWHM_CIII)km/sspect.line.widthfloatnullableHW(CIII)b? Blue HWHM of CIII] emission line (BHWHM_CIII)km/sspect.line.widthfloatnullableHW(CIII)r? Red HWHM of CIII] emission line (RHWHM_CIII)km/sspect.line.widthfloatnullableA(CIII)Amplitude of CIII] emission complex in units of median rms pixel noise (AMP_CIII)phot.flux.density;arith.ratiofloatW(CIII)? Rest frame equivalent width of CIII] emission line in {AA} (REWE_CIII)0.1nmspect.line.eqWidthdoublenullablee_W(CIII)? Uncertainty on the rest frame equivalent width of CIII] emission complex (ERR_REWE_CIII)0.1nmstat.errordoublenullableFW(MgII)? FWHM of MgII emission line (FWHM_MGII)km/sspect.line.widthfloatnullableHW(MgII)b? Blue HWHM of MgII emission line (BHWHM_MGII)km/sspect.line.widthfloatnullableHW(MgII)r? Red HWHM of MgII emission line (RHWHM_MGII)km/sspect.line.widthfloatnullableA(MgII)Amplitude of MgII emission line in units of median rms pixel noise (AMP_MGII)phot.flux.density;arith.ratiodoubleW(MgII)? Rest frame equivalent width of MgII emission line (REWE_MGII)0.1nmspect.line.eqWidthdoublenullablee_W(MgII)? Uncertainty on the rest frame equivalent width of MgII emission (ERR_REWE_MGII)0.1nmstat.errordoublenullableBAL-VI[0/1] BAL flag from visual inspection (BAL_FLAG_VI)meta.codeintBI(CIVt)? Balnicity index of CIV trough (BI_CIV)km/sspect.line.eqWidthfloatnullablee_BI(CIVt)? Error on the Balnicity index of CIV trough (ERR_BI_CIV)km/sstat.errorfloatnullableAI(CIVt)? Absorption index of CIV trough (AI_CIV)km/sspect.indexfloatnullablee_AI(CIVt)? Error on the absorption index of CIV trough (ERR_AI_CIV)km/sstat.errorfloatnullableChi2CIVt? {chi}^2^ of the trough from Eq. (3) in Paris et al. (2012, Cat. VII/269) (CHI2TROUGH)stat.fit.chi2floatnullableN2tNumber of distinct CIV troughs of width larger than 2000km/s (NCIV_2000)meta.numberintVmin2t? Minimum velocity of the CIV troughs (VMIN_CIV_2000)km/sspect.dopplerVelocfloatnullableVmax2t? Maximum velocity of the CIV troughs (VMAX_CIV_2000)km/sspect.dopplerVelocfloatnullableN.45tNumber of distinct CIV troughs of width larger than 450km/s (NCIV_450)meta.numberintVmin.45t? Minimum velocity of the CIV troughs (VMIN_CIV_450)km/sspect.dopplerVelocfloatnullableVmax.45t? Maximum velocity of the CIV troughs (VMAX_CIV_450)km/sspect.dopplerVelocfloatnullableW(SiIVt)? Rest frame equivalent width of the Si iv trough (REW_SIIV)0.1nmspect.line.eqWidthdoublenullableW(CIVt)? Rest frame equivalent width of the CIV trough (REW_CIV)0.1nmspect.line.eqWidthdoublenullableRUNSDSS Imaging Run Number of photometric measurements (RUN_NUMBER)meta.numberintPh-MJDModified Julian Date of imaging observation (PHOTO_MJD)time.epochintRerunSDSS Photometric Processing Rerun Number (RERUN_NUMBER)meta.idcharColcam[1/6]? SDSS Camera Column Number (COL_NUMBER)meta.idintnullableFieldSDSS Field Number (FIELD_NUMBER)phot.mag;em.opt.IintobjIDSDSS Object Identification Number (OBJ_ID)meta.idcharFu? PSF flux in u band (not corrected for Galactic extinction) in nnomggies (PSFFLUXu) (G2)3.63uJyphot.mag;em.opt.UdoublenullableFg? PSF flux in g band (not corrected for Galactic extinction) in nnomggies (PSFFLUXg) (G2)3.63uJyphot.mag;em.opt.BdoublenullableFr? PSF flux in r band (not corrected for Galactic extinction) in nnomggies (PSFFLUXr) (G2)3.63uJyphot.mag;em.opt.RdoublenullableFi? PSF flux in i band (not corrected for Galactic extinction) in nnomggies (PSFFLUXi) (G2)3.63uJyphot.mag;em.opt.IdoublenullableFz? PSF flux in z band (not corrected for Galactic extinction) in nnomggies (PSFFLUXz) (G2)3.63uJyphot.mag;em.opt.IdoublenullableIVFuInverse variance of of PSF flux in u band in nnomggies (IVAR_PSFFLUXu) (G2)3.63uJyphot.mag;em.opt.UdoubleIVFgInverse variance of of PSF flux in g band in nnomggies (IVAR_PSFFLUXg) (G2)3.63uJyphot.mag;em.opt.BdoubleIVFrInverse variance of of PSF flux in r band in nnomggies (IVAR_PSFFLUXr) (G2)3.63uJyphot.mag;em.opt.RdoubleIVFiInverse variance of of PSF flux in i band in nnomggies (IVAR_PSFFLUXi) (G2)3.63uJyphot.mag;em.opt.IdoubleIVFzInverse variance of of PSF flux in z band in nnomggies (G2) (IVAR_PSFFLUXz)3.63uJyphot.mag;em.opt.Idoubleumag? PSF magnitude in u band (not corrected for Galactic extinction) (PSFMAGu)magphot.mag;em.opt.Ufloatnullablegmag? PSF magnitude in g band (not corrected for Galactic extinction) (PSFMAGg)magphot.mag;em.opt.Bfloatnullablermag? PSF magnitude in r band (not corrected for Galactic extinction) (PSFMAGr)magphot.mag;em.opt.Rfloatnullableimag? PSF magnitude in i band (not corrected for Galactic extinction) (PSFMAGi)magphot.mag;em.opt.Ifloatnullablezmag? PSF magnitude in z band (not corrected for Galactic extinction)magphot.mag;em.opt.Ifloatnullablee_umag? error in PSF magnitude in u band (ERR_PSFMAGu)magstat.error;phot.mag;em.opt.Ufloatnullablee_gmag? error in PSF magnitude in g band (ERR_PSFMAGg)magstat.error;phot.mag;em.opt.Bfloatnullablee_rmag? error in PSF magnitude in r band (ERR_PSFMAGr)magstat.error;phot.mag;em.opt.Rfloatnullablee_imag? error in PSF magnitude in i band (ERR_PSFMAGi)magstat.error;phot.mag;em.opt.Ifloatnullablee_zmag? error in PSF magnitude in z band (ERR_PSFMAGz)magstat.error;phot.mag;em.opt.IfloatnullableFut? Target flux in the u band (not corrected for Galactic extinction) in nnomggies (G2) (TARGET_FLUXu)3.63uJyphot.mag;em.opt.UdoublenullableFgt? Target flux in the g band (not corrected for Galactic extinction) in nnomggies (G2) (TARGET_FLUXg)3.63uJyphot.mag;em.opt.BdoublenullableFrt? Target flux in the r band (not corrected for Galactic extinction) in nnomggies (G2) (TARGET_FLUXr)3.63uJyphot.mag;em.opt.RdoublenullableFit? Target flux in the i band (not corrected for Galactic extinction) in nnomggies (G2) (TARGET_FLUXi)3.63uJyphot.mag;em.opt.IdoublenullableFzt? Target flux in the z band (not corrected for Galactic extinction) in nnomggies (G2) (TARGET_FLUXz)3.63uJyphot.mag;em.opt.IdoublenullableiMAG? Absolute i magnitude (1)magphys.magAbsdoublenullableD(g-i)? {Delta}(g-i)=(g-i)-<(g-i)>_redshift_ (Galactic extinction corrected) (DGMI) (G7)magphot.color;arith.difffloatnullableExtu? Galactic extinction in u band (EXTINCTIONu) (G8)magphys.absorptionfloatnullableExtg? Galactic extinction in g band (EXTINCTIONg) (G8)magphys.absorptiondoublenullableExtr? Galactic extinction in r band (EXTINCTIONr) (G8)magphys.absorptiondoublenullableExti? Galactic extinction in i band (EXTINCTIONi) (G8)magphys.absorptiondoublenullableExtz? Galactic extinction in z band (EXTINCTIONz) (G8)magphys.absorptiondoublenullableExtuRRecalculated Galactic extinction in u (EXTINCTION_RECALu) (G9)magphys.absorptiondoubleExtgRRecalculated Galactic extinction in g (EXTINCTION_RECALg) (G9)magphys.absorptiondoubleExtrRRecalculated Galactic extinction in r (EXTINCTION_RECALr) (G9)magphys.absorptiondoubleExtiRRecalculated Galactic extinction in i (EXTINCTION_RECALi) (G9)magphys.absorptiondoubleExtzRRecalculated Galactic extinction in z (EXTINCTION_RECALz) (G9)magphys.absorptiondoublelogNHIlogarithm of Galactic HI column density (HI_GAL)log(cm**-2)phys.columnDensity;pos.galacticfloatVarmatchFlag for variability information (0 if not available) (VAR_MATCHED)meta.codeintVarchi2Reduced {chi}^2^ when the light curve is fit with a constant (VAR_CHI2)stat.fit.chi2floatVarAStructure function parameter A as defined in Palanque-Delabrouille et al. (2011A&A...530A.122P) (VAR_A)stat.fit.paramdoubleVargammaStructure function parameter {gamma} as defined in Palanque-Delabrouille et al. (2011A&A...530A.122P) (VAR_GAMMA)stat.fit.paramdoublelogXctlog RASS full band count rate (RASS_COUNTS)log(count.s**-1)phot.count;em.X-rayfloatSNR(X)S/N of the RASS count rate (RASS_COUNTS_SNR)stat.snrfloatsepXSDSS-RASS separation in arcsec (SDSS2ROSAT_SEP)arcsecpos;arith.difffloatNDetXNumber of detections in XMM-Newton (N_DETECTION_XMM)meta.numberintF0.2-12Total flux (0.2-12keV) from XMM-Newton computed from the longest observation FLUX02_12KEV_SGL)mW.m**-2phot.flux;em.X-raydoublee_F0.2-12Error in total flux (0.2-12keV) from XMM-NewtonR_FLUX02_12KEV_SGL)mW.m**-2stat.errordoubleF0.2-2Soft (0.2-2keV) X-ray flux from XMM-Newton (FLUX02_2KEV)mW.m**-2phot.flux;em.X-raydoublee_F0.2-2Error in soft (0.2-2keV) X-ray flux from XMM-Newton (ERR_FLUX02_2KEV)mW.m**-2stat.errordoubleF4.5-12Hard (4.5-12keV) X-ray flux from XMM-Newton (FLUX2_12KEV)mW.m**-2phot.flux;em.X-raydoublee_F4.5-12Error in hard (4.5-12keV) X-ray flux from XMM-Newton (ERR_FLUX2_12KEV)mW.m**-2stat.errordoubleF0.2-12WTotal weighted average flux (0.2-12keV) from XMM-Newton (FLUX02_12KEV)mW.m**-2phot.flux;em.X-raydoublee_F0.2-12WError in total flux (0.2-12keV) from XMM-Newton (ERR_FLUX02_12KEV)mW.m**-2stat.errordoubleL0.2-12Total X-ray luminosity (0.2-12keV) from XMM-Newton using the longest observation (LUM02_2KEV_SGL) (2)1e-07Wphys.luminosity;em.X-raydoubleL0.5-2Soft (0.2-2keV) X-ray luminosity from XMM-Newton (LUM05_2KEV) (2)1e-07Wphys.luminosity;em.X-raydoubleL4.5-12Hard (4.5-12keV) X-ray luminosity from XMM-Newton (LUM2_12KEV) (2)1e-07Wphys.luminosity;em.X-raydoubleL0.2-2WTotal X-ray luminosity (0.2-12keV) from XMM-Newton using weighted average flux (LUM02_2KEV) (2)1e-07Wphys.luminosity;em.X-raydoublef_F4.5-12[0/1]? Flag for upper limit of hard X-ray flux (LUMX2_10_UPPER)meta.codeintnullablesepXM? SDSS-XMM-Newton separation in arcsec (SDSS2XMM_SEP)arcsecpos;arith.difffloatnullableFFUV? FUV flux (GALEX) (FUV)3.63uJyphot.flux;em.UVdoublenullableIVFUV? Inverse variance of FUV flux (in nnomggies^-2^) (FUV_IVAR)3.63uJy**-2phot.flux;em.UVdoublenullableFNUV? NUV flux (GALEX) (NUV)3.63uJyphot.flux;em.UVdoublenullableIVNUV? Inverse variance of NUV flux (in nnomggies^-2^) (NUV_IVAR)3.63uJy**-2phot.flux;em.UVdoublenullableJmag? 2MASS J magnitude (Vega) (JMAG)magphot.mag;em.IR.Jfloatnullablee_Jmag? Error in J magnitude (Vega) (ERR_JMAG)magstat.error;phot.mag;em.IR.JdoublenullableSNR(J)? J-band S/N (JSNR)stat.snrdoublenullablef_Jmag? J-band photometry flag (JRDFLAG)meta.codeintnullableHmag? 2MASS H magnitude (Vega) (HMAG)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in H magnitude (ERR_HMAG)magstat.error;phot.mag;em.IR.HdoublenullableSNR(H)? H-band S/N (HSNR)stat.snrdoublenullablef_Hmag? H-band photometry flag (HRDFLAG)meta.codeintnullableKmag? 2MASS K magnitude (Vega) (KMAG)magphot.mag;em.IR.Kfloatnullablee_Kmag? Error in K magnitude (ERR_KMAG)magstat.error;phot.mag;em.IR.KdoublenullableSNR(K)? K-band S/N (KSNR)stat.snrdoublenullablef_Kmag? K-band photometry flag (KRDFLAG)meta.codeintnullableSep2? SDSS-2MASS separation in arcsec (SDSS2MASS_SEP)arcsecpos.angDistancefloatnullableW1mag? WISE W1 magnitude (Vega) (W1MAG)magphot.mag;em.IR.3-4umfloatnullablee_W1mag? Error in W1 magnitude (ERR_W1MAG)magstat.error;phot.magdoublenullableW1SNR? S/N in W1 band (W1SNR)stat.snrfloatnullableW1chi2? {chi}^2^ in W1 band (W1CHI2)stat.fit.chi2floatnullableW2mag? WISE W2 magnitude (Vega) (W2MAG)magphot.mag;em.IR.4-8umfloatnullablee_W2mag? Error in W2 magnitude (ERR_W2MAG)magstat.error;phot.magdoublenullableW2SNR? S/N in W2 band (W2SNR)stat.snrfloatnullableW2chi2? {chi}^2^ in W2 band (W2CHI2)stat.fit.chi2floatnullableW3mag? WISE W3 magnitude (Vega) (W3MAG)magphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? Error in W3 magnitude (ERR_W3MAG)magstat.error;phot.magdoublenullableW3SNR? S/N in W3 band (W3SNR)stat.snrfloatnullableW3chi2? {chi}^2^ in W3 band (W3CHI2)stat.fit.chi2floatnullableW4mag? WISE W4 magnitude (Vega) (W4MAG)magphot.flux.density;em.IR.8-15umfloatnullablee_W4mag? Error in W4 magnitude (ERR_W4MAG)magstat.error;phot.magdoublenullableW4SNRS/N in W4 band (W4SNR)stat.snrfloatW4chi2{chi}^2^ in W4 band (W4CHI2)stat.fit.chi2floatCCflagsWISE contamination and confusion flag (CC_FLAGS)meta.codecharPHflagWISE photometric quality flag (PH_FLAG)meta.code.qual;photcharsepWSDSS-WISE separation in arcsec (SDSS2WISE_SEP)arcsecpos;arith.difffloatUKIDSSUKIDSS Matched (UKIDSS_MATCHED)meta.codeintFYY-band flux density from UKIDSS (YFLUX)W.m**-2.Hz**-1phot.flux.density;em.IRdoublee_FY? Error in Y-band density flux from UKIDSS (YFLUX_ERR)W.m**-2.Hz**-1stat.errordoublenullableFJ? J-band flux density from UKIDSS (JFLUX)W.m**-2.Hz**-1phot.flux.density;em.IR.Jdoublenullablee_FJ? Error in J-band flux density from UKIDSS (JFLUX_ERR)W.m**-2.Hz**-1stat.errordoublenullableFH? H-band flux density from UKIDSS (HFLUX)W.m**-2.Hz**-1phot.flux.density;em.IR.Hdoublenullablee_FH? Error in H-band flux density from UKIDSS (HFLUX_ERR)W.m**-2.Hz**-1stat.errordoublenullableFK? K-band flux density from UKIDSS (KFLUX)W.m**-2.Hz**-1phot.mag;em.IR.Kdoublenullablee_FK? Error in K-band flux density from UKIDSS (KFLUX_ERR)W.m**-2.Hz**-1stat.errordoublenullableFIRSTFIRST matched (FIRST_MATCHED)meta.codeintF1p? FIRST peak flux density at 20 cm expressed in mJy (FIRST_FLUX)mJyphot.flux.density;em.radio.750-1500MHzdoublenullableSNR(1)? S/N of the FIRST flux density (FIRST_SNR)stat.snrdoublenullablesep1? SDSS-FIRST separation in arcsec (SDSS2FIRST_SEP)arcsecpos;arith.difffloatnullableDR12Display the SDSS data for this quasarmeta.ref.urlcharDR7Display the SDSS-DR7 data for this quasarmeta.ref.urlcharVII/279/dr12qbalDetailed properties of BAL quasarsVmin2t1Minimum velocity of each detected absorption trough (VMIN_CIV_2000_1)spect.dopplerVelocdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) corrected by CDS (SDSS_NAMEc) (G1)meta.id;meta.maincharSDSSoSDSS-DR12 designation HHMMSS.ss+DDMMSS.s (J2000) (SDSS_NAME) (G1)meta.idcharRAJ2000Right Ascension (J2000) (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (DEC)degpos.eq.dec;meta.mainindexedTHINGIDThing_ID (unique SDSS source identifier) (THING_ID)meta.idprimaryPlateSpectroscopic Plate number (PLATE)obs.fieldintMJDSpectroscopic MJD (MJD)time.epochintFiberSpectroscopic Fiber number (FIBERID)phot.mag;em.opt.Iintz.vRedshift from visual inspection (Z_VI)src.redshift;pos.heliocentricdoublez.b? Redshift from BOSS pipeline (Z_PIPE)src.redshift;pos.heliocentricdoublenullablee_z.b[]? Error on BOSS pipeline redshift (error codes -4, -5, -6) (ERR_ZPIPE)stat.error;src.redshiftdoublenullablef_z.bZWARNING flag (ZWARNING) (G3)meta.codeintz.PCA? PCA redshift (Z_PCA) (G4)src.redshift;pos.heliocentricdoublenullablee_z.PCA? Error on PCA redshift (ERR_ZPCA)stat.error;src.redshiftdoublenullableMorph[0/1]? SDSS morphology flag 0=point source 1=extended (SDSS_MORPHO)src.class.starGalaxyintnullableBtarg1BOSS target flag for main survey (BOSS_TARGET1) (G5)meta.idAtarg1BOSS target flag for ancillary programs (ANCILLARY_TARGET1) (G5)meta.idAtarg2BOSS target flag for ancillary programs (ANCILLARY_TARGET2) (G5)meta.ideBtarg0Target selection flag for eBOSS pilot survey (EBOSS_TARGET0)meta.idFuPSF flux in the u band (not corrected for Galactic extinction) in nnomggies unit (PSFFLUXu) (G2)3.63uJyphot.mag;em.opt.UdoubleFgPSF flux in the g band (not corrected for Galactic extinction) in nnomggies unit (PSFFLUXg) (G2)3.63uJyphot.mag;em.opt.BdoubleFrPSF flux in the r band (not corrected for Galactic extinction) in nnomggies unit (PSFFLUXr) (G2)3.63uJyphot.mag;em.opt.RdoubleFiPSF flux in the i band (not corrected for Galactic extinction) in nnomggies unit (PSFFLUXi) (G2)3.63uJyphot.mag;em.opt.IdoubleFzPSF flux in the z band (not corrected for Galactic extinction) in nnomggies unit (PSFFLUXz) (G2)3.63uJyphot.mag;em.opt.IdoubleIVFuInverse variance of u flux (IVAR_PSFFLUXu)phot.mag;em.opt.UdoubleIVFgInverse variance of g flux (IVAR_PSFFLUXg)phot.mag;em.opt.BdoubleIVFrInverse variance of r flux (IVAR_PSFFLUXr)phot.mag;em.opt.RdoubleIVFiInverse variance of i flux (IVAR_PSFFLUXi)phot.mag;em.opt.IdoubleIVFzInverse variance of z flux (IVAR_PSFFLUXz)phot.mag;em.opt.IdoubleumagPSF magnitude in u band (not corrected for Galactic extinction) (PSFMAGu)magphot.mag;em.opt.UfloatgmagPSF magnitude in g band (not corrected for Galactic extinction) (PSFMAGg)magphot.mag;em.opt.BfloatrmagPSF magnitude in r band (not corrected for Galactic extinction) (PSFMAGr)magphot.mag;em.opt.RfloatimagPSF magnitude in i band (not corrected for Galactic extinction) (PSFMAGi)magphot.mag;em.opt.IfloatzmagPSF magnitude in z band (not corrected for Galactic extinction) (PSFMAGz)magphot.mag;em.opt.Ifloate_umagError in u PSF magnitude (ERR_PSFMAGu)magstat.error;phot.mag;em.opt.Ufloate_gmagError in g PSF magnitude (ERR_PSFMAGg)magstat.error;phot.mag;em.opt.Bfloate_rmagError in r PSF magnitude (ERR_PSFMAGr)magstat.error;phot.mag;em.opt.Rfloate_imagError in i PSF magnitude (ERR_PSFMAGi)magstat.error;phot.mag;em.opt.Ifloate_zmagError in z PSF magnitude (ERR_PSFMAGz)magstat.error;phot.mag;em.opt.IfloatExtuGalactic extinction in u band (EXTINCTIONu) (G8)magphys.absorptionfloatExtgGalactic extinction in g band (EXTINCTIONg) (G8)magphys.absorptiondoubleExtrGalactic extinction in r band (EXTINCTIONr) (G8)magphys.absorptiondoubleExtiGalactic extinction in i band (EXTINCTIONi) (G8)magphys.absorptiondoubleExtzGalactic extinction in z band (EXTINCTIONz) (G8)magphys.absorptiondoubleSNRspecMedian signal-to-noise ratio per pixel over the whole spectrum (SNR_SPEC)stat.snrfloatSNR1700Median signal-to-noise ratio per pixel in the window 1650-1750{AA} (rest frame) (SNR_1700)stat.snrfloatSNR3000Median signal-to-noise ratio per pixel in the window 2950-3050{AA} (rest frame) (SNR_3000)stat.snrfloatBI(CIVt)? Balnicity Index (BI) (BI_CIV)km/sspect.line.eqWidthfloatnullablee_BI(CIVt)? Error on Balnicity index (ERR_BI_CIV)km/sstat.errorfloatnullableN2tNumber of troughs wider than 2000km/s (NCIV_2000)meta.numberintVmin2t2Minimum velocity of each detected absorption trough (VMIN_CIV_2000_2)spect.dopplerVelocdoubleVmin2t3Minimum velocity of each detected absorption trough (VMIN_CIV_2000_3)spect.dopplerVelocdoubleVmin2t4Minimum velocity of each detected absorption trough (VMIN_CIV_2000_4)spect.dopplerVelocdoubleVmin2t5Minimum velocity of each detected absorption trough (VMIN_CIV_2000_5)spect.dopplerVelocdoubleVmax2t1Maximum velocity of each detected absorption trough (VMAX_CIV_2000_1)spect.dopplerVelocdoubleVmax2t2Maximum velocity of each detected absorption trough (VMAX_CIV_2000_2)spect.dopplerVelocdoubleVmax2t3Maximum velocity of each detected absorption trough (VMAX_CIV_2000_3)spect.dopplerVelocdoubleVmax2t4Maximum velocity of each detected absorption trough (VMAX_CIV_2000_4)spect.dopplerVelocdoubleVmax2t5Maximum velocity of each detected absorption trough (VMAX_CIV_2000_5)spect.dopplerVelocdoubleposmin2t1Position of the minimum of each absorption trough (POSMIN_CIV_2000_1)km/spos;stat.mindoubleposmin2t2Position of the minimum of each absorption trough (POSMIN_CIV_2000_2)km/spos;stat.mindoubleposmin2t3Position of the minimum of each absorption trough (POSMIN_CIV_2000_3)km/spos;stat.mindoubleposmin2t4Position of the minimum of each absorption trough (POSMIN_CIV_2000_4)km/spos;stat.mindoubleposmin2t5Position of the minimum of each absorption trough (POSMIN_CIV_2000_5)km/spos;stat.mindoubleFmin2t1Normalized flux density at the minimum of each absorption trough (FMIN_CIV_2000_1)phot.flux;arith.ratiodoubleFmin2t2Normalized flux density at the minimum of each absorption trough (FMIN_CIV_2000_2)phot.flux;arith.ratiodoubleFmin2t3Normalized flux density at the minimum of each absorption trough (FMIN_CIV_2000_3)phot.flux;arith.ratiodoubleFmin2t4Normalized flux density at the minimum of each absorption trough (FMIN_CIV_2000_4)phot.flux;arith.ratiodoubleFmin2t5Normalized flux density at the minimum of each absorption trough (FMIN_CIV_2000_5)phot.flux;arith.ratiodoubleAI(CIVt)? Absorption index (AI) (AI_CIV)km/sspect.indexfloatnullablee_AI(CIVt)? Error on absorption index (ERR_AI_CIV)km/sstat.errorfloatnullableN.45t? Number of absorption trough wider than 450km/s (NCIV_450)meta.numberintnullableVmin.45t1? Minimum velocity of first detected absorption trough (VMIN_CIV_450)spect.dopplerVelocdoublenullableVmax.45t1? Maximum velocity of first detected absorption trough (VMAX_CIV_450)spect.dopplerVelocdoublenullableposmin.45t1? Position of the minimum of first absorption trough (POSMIN_CIV_450)km/spos;stat.mindoublenullableFmin.45t1? Normalized flux density at the minimum of first absorption trough (FMIN_CIV_450)phot.flux;arith.ratiodoublenullableDR12Display the SDSS data for this quasarmeta.ref.urlchar