J/AJ/127/2565ivo://CDS.VizieR/J/AJ/127/2565doi:10.26093/cds/vizier.51272565CDSde Vries W.H.Becker R.H.White R.L.Helfand D.J.2023-04-06T16:51:03Z2005-11-05T22:19:39ZCDS support team

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

cds-question@unistra.frquasarsradio-galaxiesradio-sourcesA sample of 123 radio sources that exhibit significant variations at 1.4GHz on a 7 year baseline has been created using FIRST VLA B-configuration data from 1995 and 2002 on a strip at {delta}=0 near the south Galactic cap. This sample spans the range of radio flux densities from ~2 to 1000mJy. It presents both in size and radio flux density range a unique starting point for variability studies of galaxies and quasars harboring lower luminosity active galactic nuclei (AGNs).2004AJ....127.2565Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/127/2565CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/127/2565https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/127/2565http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/127/2565https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/127/2565https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/127/2565http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/127/2565GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/127/2565/table2 (FIRST Zero-Declination Variable Sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/127/2565/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/127/2565/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/127/2565/table2?GETtext/xml+votable180.050000true0.296625-0.33655560.0055555555555555566/0 17407 17748 17750-17751 17766 17770 17772 17807 17812-17813 17816-17818 17820 17833 17835 17856 18005-18006 18009-18010 18019 18021 18025-18027 18032 18067 18070-18071 18073 18075-18076 18084-18086 18090-18091 18096 18112 18771-18774 18782 18789 18793-18795 18800 18839-18841 18852-18854 18860 18880 19029-19030 19034 19036 19046 19049-19050 19052-19054 19056 19093-19094 19097-19098 19100-19101 19109 19136 19200 19202 19456 23204-23206 23209-23210 23212 368632.85864675833786e-19 3.5010283109654867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/127/2565?format=asciiRadiodefaultJ/AJ/127/2565/table2FIRST Zero-Declination Variable SamplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource/component name (JHHMMSS+DDMMSS)charf_Name[fgh] Flag on Name (1)charRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainF20021.4GHz flux density in 2002mJyfloatF19951.4GHz flux density in 1995mJyfloatFRCorrected flux density ratio (2)floatSigSignificance in units of {sigma} rms (3)floatz? SDSS redshiftfloatnullablef_z[e] when redshift taken from literaturecharrmag? SDSS r-band magnitudemagfloatnullableId[GQq] Optical identification (5)charRTypeRadio morphology (6)charFIRSTLink to the FIRST parameters of this source (Cat. VIII/71)char