VII/241ivo://CDS.VizieR/VII/241CDSCroom S.M.Smith R.J.Boyle B.J.Shanks T.Miller L.Outram P.J.,Loaring N.S.2017-07-05T14:53:21Z2006-06-06T06:34:07ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarsredshiftedspectroscopywhite-dwarf-starsgalaxiesThe final catalogue of the 2dF QSO Redshift Survey (2QZ) is based on Anglo-Australian Telescope 2dF spectroscopic observations of 44576 colour-selected (ub_J_r) objects with 18.25<b_J_< 20.85 selected from automated plate measurement scans of UK Schmidt Telescope (UKST) photographic plates. The 2QZ comprises 23338 quasi-stellar objects (QSOs), 12292 galactic stars (including 2071 white dwarfs) and 4558 compact narrow emission-line galaxies. We obtained a reliable spectroscopic identification for 86 per cent of objects observed with 2dF. We also report on the 6dF QSO Redshift Survey (6QZ), based on UKST 6dF observations of 1564 brighter (16<b_J_<18.25) sources selected from the same photographic input catalogue. In total, we identified 322 QSOs spectroscopically in the 6QZ. The completed 2QZ is, by more than a factor of 50, the largest homogeneous QSO catalogue ever constructed at these faint limits (b_J_<20.85) and high QSO surface densities (35 QSOs/deg^2^). As such, it represents an important resource in the study of the Universe at moderate-to-high redshifts.2004MNRAS.349.1397Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/VII/241CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www.2dfquasar.org/ : the 2QZ Home PageII/268 : 2QZ Photometric Catalog (Croom et al., 2005)VII/235 : Quasars and Active Galactic Nuclei (11th Ed.) (Veron+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VII/241https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VII/241http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VII/241https://vizier.cds.unistra.fr/viz-bin/votable?-source=VII/241https://vizier.iucaa.in/viz-bin/votable?-source=VII/241http://vizieridia.saao.ac.za/viz-bin/votable?-source=VII/241GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VII/241/2qz (2QZ catalogue: includes North and South galactic poles, and 6QZ with another 1657 lines.)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/241/2qz?https://vizier.iucaa.in/viz-bin/conesearch/VII/241/2qz?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/241/2qz?GETtext/xml+votable180.050000true181.15725-2.16736110.005555555555555556Cone search capability for table VII/241/rep (Additional spectra when more than 2 spectra were taken)https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/241/rep?https://vizier.iucaa.in/viz-bin/conesearch/VII/241/rep?http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/241/rep?GETtext/xml+votable180.050000true181.15725-2.16736110.0055555555555555564/1029 1030 1033 1034 1622 1625 1626 1637 1638 1641 1642 1685 1686 1689 1690 1701 2229 2230 2233 2234 2249 2250 2933 2934 2937 2938 5/4111 4115 4124 4131 4140 4144 4160 4224 6397 6398 6399 6461 6462 6463 6477 6478 6479 6481 6482 6483 6484 6486 6487 6492 6497 6498 6499 6508 6512 6541 6542 6543 6545 6546 6547 6556 6561 6562 6563 6572 6576 6592 6717 6718 6719 6733 6734 6735 6737 6738 6739 6748 6753 6754 6755 6764 6768 6801 6802 6803 6808 6809 6811 6812 6848 6912 8831 8895 8911 8915 8924 8931 8940 8944 8975 8984 8986 8987 8995 9004 9008 9088 11647 11711 11727 11731 11740 11741 11747 11756 11760 12096 6/8200 8202 16437 16438 16439 16441 16442 16443 16455 16458 16459 16500 16501 16502 16504 16505 16506 16519 16521 16522 16523 16564 16565 16566 16568 16569 16570 16580 16581 16582 16584 16585 16586 16644 16645 16646 16648 16649 16650 16672 16900 16901 16902 16904 16905 16906 16912 25567 25583 25587 25823 25839 25843 25887 25903 25907 25923 25940 25942 25943 25972 25973 25974 25976 25977 25978 25987 26036 26037 26038 26040 26041 26042 26052 26053 26054 26056 26057 26058 26143 26159 26163 26179 26228 26229 26230 26232 26233 26234 26243 26292 26293 26294 26296 26297 26298 26308 26309 26310 26312 26313 26314 26372 26373 26374 26376 26377 26378 26847 26863 26867 26911 26927 26931 26947 26996 26997 26998 27000 27001 27002 27011 27060 27061 27062 27064 27065 27066 27076 27077 27080 27081 27082 27167 27188 27189 27191 27203 27240 27241 27243 27252 27253 27254 27256 27257 27258 27332 27396 27397 27398 27400 27402 27652 27653 27654 27656 27657 27658 35317 35318 35319 35321 35322 35323 35573 35575 35577 35578 35579 35637 35638 35639 35641 35642 35643 35653 35654 35655 35657 35658 35659 35700 35701 35702 35704 35705 35706 35719 35721 35723 35764 35765 35766 35768 35769 35770 35780 35781 35782 35784 35785 35786 35893 35894 35895 35897 35898 35899 35914 35915 35918 35940 35942 35943 35954 35960 35962 35973 35974 35975 35977 35978 35979 36020 36021 36022 36024 36025 36026 36036 36037 36038 36040 36041 36042 36356 36357 36358 36360 36361 36362 45039 45048 45050 45051 46581 46582 46583 46585 46587 46837 46838 46839 46841 46901 46902 46903 46905 46906 46907 46917 46918 46919 46921 46923 46968 46969 46970 46981 46982 46983 46985 46986 46987 47028 47029 47030 47032 47033 47034 47044 47045 47046 47048 47049 47050 48213 48388 48389 48390 483939.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/VII/241?format=asciiOpticaldefaultVII/241/2qz2QZ catalogue: includes North and South galactic poles, and 6QZ with another 1657 lines.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2QZName of the source in 2QZ (JHHMMSS.S+DDMMSS)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)pos.eq.dec;meta.mainintNoInternal catalog object numbermeta.idintintNameInternal name of the objectmeta.idcharSectorName of the sector this object inhabitsobs.fieldcharFieldUKST Survey field numbermeta.id;obs.fieldintXposAPM scan X position (1pix=8um)pixpos.cartesian.x;instr.detdoubleYposAPM scan Y position (1pix=8um)pixpos.cartesian.y;instr.detdoublebJmagb_J_ magnitudemagphot.mag;em.opt.Bfloatu-bJu-b_J_ colour indexmagphot.color;em.opt.U;em.opt.BfloatbJ-rb_J_-r colour index (G1)magphot.color;em.opt.B;em.opt.RfloatNspNumber of observations (1)meta.numberintz1Redshift from first spectrumsrc.redshiftfloatq_z1Quality flag for first spectrum (G3)meta.code.qualintID1Identification for first spectrum (G4)src.classcharDate1? Date of observation for first spectrumtime.epochnullableField1field and spectrograph for first spectrum (G2)meta.noteintFiber12dF fiber numbermeta.noteintS/N1Signal-to-noise ratio for first spectrum (G5)stat.snrfloatz2? Redshift from second spectrumsrc.redshiftfloatnullableq_z2Quality flag for second spectrum (G3)meta.code.qualintID2Identification for second spectrum (G4)src.classcharDate2? Date of observation for second spectrumtime.epochnullableField2field and spectrograph for 2nd spectrum (G2)meta.noteintFiber22dF fiber numbermeta.noteintS/N2Signal-to-noise ratio for second spectrum (G5)stat.snrfloatzprev? Redshift if previously known (2)src.redshift;pos.heliocentricfloatnullableF21cm? Flux at 1.4GHz from NVSS (3)mJyphot.flux.density;em.radio.750-1500MHzintnullableFX? Flux at 0.1-2.4keV from RASS (4)1e-16W.m**-2phot.flux;em.X-rayfloatnullableE(B-V)Reddening E(B-V) from Schegel et al., 1998ApJ...500..525Smagphot.color.excessdoubleCom1Specific Comment on observation 1meta.notecharCom2Specific Comment on observation 2meta.notecharSpectrameta.ref.urlcharFITSGet the most accurate spectrum in FITS gzipped formatmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharVII/241/repAdditional spectra when more than 2 spectra were takenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2QZName of the source in 2QZ (JHHMMSS.S+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzRedshift from first spectrumsrc.redshiftfloatq_zQuality flag for first spectrum (G3)meta.code.qual;src.redshiftintIDIdentification for first spectrum (G4)src.classcharDate? Date of observation for first spectrumtime.epochnullableFieldfield and spectrograph for first spectrum (G2)meta.id;obs.fieldintFiber2dF fiber numbermeta.idintS/N1Signal-to-noise ratio for first spectrum (G5)stat.snrfloatNo[3,6] Observation numbermeta.idintComComment on observationmeta.notecharSpmeta.ref.urlchar