UV-excess quasar candidatesJ/A+AS/111/169ivo://CDS.VizieR/J/A+AS/111/169CDSMoreau O.Reboul H.2002-10-04T15:43:44Z2002-10-04T15:43:27ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.frquasarsgalaxiesultraviolet-sourcesoptical-observationWe have developed a procedure (so called PAPA) for measurement of magnitudes (about 0.1mag accurate) and positions (with accuracy better than 0.5arcsec) of all the objects present on photographic plates digitised with the MAMA machine. This homogeneous procedure was applied to four Schmidt plates - in U, B and twice V - covering the Palomar-Sky-Survey field PS +30deg 13h00m, a 40-square-degree zone at the North Galactic Pole. A general-interest exhaustive tricolour catalogue of 19542 star-like objects down to V=20.0 has been produced and we selected 1681 quasar candidates on the basis of ultraviolet excess and, when possible, absence of any measurable proper motion. The astrometric and photometric catalogue of the candidates is given in electronic form.1995A&AS..111..169Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/111/169CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/111/169https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/111/169http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/111/169https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/111/169https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/111/169http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/111/169GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/111/169/table3 (Quasar-candidate catalogue (section 6 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/111/169/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/111/169/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/111/169/table3?GETtext/xml+votable180.050000true193.0357531.63944440.005555555555555556Cone search capability for table J/A+AS/111/169/table7 (Objects already spectroscopically identified)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/111/169/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/111/169/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/111/169/table7?GETtext/xml+votable180.050000true193.070791731.98966670.005555555555555556Cone search capability for table J/A+AS/111/169/table1 (UVX objects already spectroscopically identified (table 7 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/111/169/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/111/169/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/111/169/table1?GETtext/xml+votable180.050000true193.070791731.98966670.005555555555555556Cone search capability for table J/A+AS/111/169/table2 (White-dwarf candidates (from table 8 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/111/169/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/111/169/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/111/169/table2?GETtext/xml+votable180.050000true197.992041727.90586110.0055555555555555565/2593-2596 2598-2601 2603-2604 6/10286-10287 10298 10369-10371 10390 10408-10409 10411 10420 10422 10424 10756 28125-28127 28149 28151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/111/169?format=asciiUVdefaultJ/A+AS/111/169/table3Quasar-candidate catalogue (section 6 of paper)UmagU magnitudemagphot.mag;em.opt.UfloatOMHRDetection numbermeta.id;meta.mainintNameIdentificationmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA2000Right ascension 2000pos.eq.ra;meta.mainDE2000Declination 2000pos.eq.dec;meta.mainu_UmagUncertainty flag on Umagmeta.code.errorcharBmag[]? B magnitudemagphot.mag;em.opt.Bfloatnullableu_BmagUncertainty flag on Bmagmeta.code.errorcharVmagV magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag on Vmagmeta.code.errorcharRemRemarks (1)meta.notechar
J/A+AS/111/169/table7Objects already spectroscopically identifiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOMHRDetection numbermeta.id;meta.mainintNameIdentificationmeta.idcharRA2000Right ascension 2000pos.eq.ra;meta.mainDE2000Declination 2000pos.eq.dec;meta.mainUmagU magnitudemagphot.mag;em.opt.Ufloatu_UmagUncertainty flag on Umagmeta.code.errorcharBmag[]? B magnitudemagphot.mag;em.opt.Bfloatnullableu_BmagUncertainty flag on Bmagmeta.code.errorcharVmagV magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag on Vmagmeta.code.errorcharRemRemarks (1)meta.notechar
J/A+AS/111/169/table1UVX objects already spectroscopically identified (table 7 of paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOMHRDetection numbermeta.id;meta.mainintNameIdentificationmeta.idcharRA2000Right ascension 2000pos.eq.ra;meta.mainDE2000Declination 2000pos.eq.dec;meta.mainUmagU magnitudemagphot.mag;em.opt.Ufloatu_UmagUncertainty flag on Umagmeta.code.errorcharBmag[]? B magnitudemagphot.mag;em.opt.Bfloatnullableu_BmagUncertainty flag on Bmagmeta.code.errorcharVmagV magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag on Vmagmeta.code.errorcharRemRemarks (1)meta.notechar
J/A+AS/111/169/table2White-dwarf candidates (from table 8 of paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOMHRDetection numbermeta.id;meta.mainintNameIdentificationmeta.idcharRA2000Right ascension 2000pos.eq.ra;meta.mainDE2000Declination 2000pos.eq.dec;meta.mainUmagU magnitudemagphot.mag;em.opt.Ufloatu_UmagUncertainty flag on Umagmeta.code.errorcharBmag[]? B magnitudemagphot.mag;em.opt.Bfloatnullableu_BmagUncertainty flag on Bmagmeta.code.errorcharVmagV magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag on Vmagmeta.code.errorcharRemRemarks (1)meta.notechar