J/AJ/130/923ivo://CDS.VizieR/J/AJ/130/923doi:10.26093/cds/vizier.51300923CDSWrobel J.M.Taylor G.B.Rector T.A.Myers S.T.Fassnacht C.D.2021-03-29T08:12:30Z2020-08-16T16:26:35ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiradio-galaxiesAs a step toward investigating the parsec-scale properties of faint extragalactic radio sources, the Very Long Baseline Array (VLBA) was used at 5.0GHz to obtain phase-referenced images of 76 sources in the NOAO Bootes field. These 76 sources were selected from the Faint Images of the Radio Sky at Twenty cm (FIRST) catalog to have peak flux densities above 10mJy at 5" resolution and deconvolved major diameters of less than 3" at 1.4GHz. Of these faint radio sources, 57 were identified with accretion-powered radio galaxies and quasars brighter than 25.5mag in the optical I band. On Very Large Array (VLA) scales at 1.4GHz, a measure of the compactness of the faint sources (the ratio of the peak flux density from FIRST to the integrated flux density from the NRAO VLA Sky Survey catalog) spans the full range of possibilities arising from source-resolution effects.2005AJ....130..923Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/130/923CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VIII/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/130/923https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/130/923http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/130/923https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/130/923https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/130/923http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/130/923GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/130/923/table1 (Faint sources with deconvolved major diameters less than 3" in FIRST)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/130/923/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/130/923/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/130/923/table1?GETtext/xml+votable180.050000true216.2345291735.478277780.0055555555555555565/2287 2628 6/9145 9146 9147 10516 10517 10518 105219.276497240453405e-25 3.313034785154005e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/130/923?format=asciiRadiodefaultJ/AJ/130/923/table1Faint sources with deconvolved major diameters less than 3" in FIRSTrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTThe FIRST (Cat. <VIII/71>) name (JHHMMSS.sss+DDMMSS.ss)meta.id;meta.maincharprimarySp1.4GHzFIRST (Cat. <VIII/71>) 1.4GHz peak flux density (1)mJyphot.flux.density;em.radio.750-1500MHzfloate_Sp1.4GHzUncertainty in Sp1.4GHz (1)mJystat.errorfloatSi1.4GHzNVSS (Cat. <VIII/65>) 1.4GHz integrated flux densitymJyphot.flux.density;em.radio.750-1500MHzfloate_Si1.4GHzUncertainty in Si1.4GHzmJystat.errorfloatStatus[iu] Identification status (2)meta.codecharSegVLBA observing segmentmeta.idcharsigmaVLBA 5.0GHz search image {sigma} (1)mJystat.stdevfloatRAJ2000? Hour of right ascension (J2000) (3)pos.eq.ranullableDEJ2000? Degree of declination (J2000) (3)pos.eq.decnullablel_Si5GHzLimit flag on Si5GHzmeta.code.errorcharSi5GHzVLBA 5.0GHz integrated flux densitymJyphot.flux.density;em.radio.3-6GHzfloate_Si5GHz? Uncertainty in Si5GHzmJystat.errorfloatnullablef_Si5GHz[c] Flag on Si5GHz (4)meta.codecharNote[*] Note detailed in file notes.datmeta.notechar_RAPositions from FIRST name (right ascension part)degpos.eq.ra;meta.main_DEPositions from FIRST name (declination part)degpos.eq.dec;meta.mainJ/AJ/130/923/notesNotes on individual sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTThe FIRST (Cat. <VIII/71>) name (JHHMMSS.sss+DDMMSS.ss)meta.id;meta.maincharNoteNotemeta.notechar