VIII/59ivo://CDS.VizieR/VIII/59CDSWhite R.L.Becker R.H.Helfand D.J.Gregg M.D.2017-06-22T14:29:07Z2003-01-01T17:55:02ZCDS support team

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

cds-question@unistra.frradio-sourcessurveysThe FIRST survey to produce Faint Images of the Radio Sky at Twenty centimeters began in 1993. It uses the VLA (Very Large Array, a facility of the National Radio Observatory (NRAO)) at a frequency of 1.4GHz, and it is slated to 10,000 deg^2^ to a sensitivity of about 1mJy with an angular resolution of about 5". The co-added images are available on the Internet (see the FIRST home page at http://sundog.stsci.edu/ for details). The source catalogue is derived from the images. This version of the FIRST Survey is derived from the 1993 through 1998 observations, and contains 549,707 sources covering the north and south Galactic caps. The catalog covers about a total of 6060 square degrees of sky (5450 square degrees in the north and 610 square degrees in the south). No new data were taken for the south Galactic cap from the preceding version (catalog <VIII/51>), but the southern images south of about -2 degrees were reprocessed with an improved pipeline script that substantially reduces the sidelobe levels in a small fraction of the fields. Consequently, many of the southern sources have slight changes in their positions, flux densities, and other properties; a small number of sources from the previous catalog are missing from this catalog.1997ApJ...475..479Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/VIII/59CatalogResearchIsServedByTAP VizieR generic serviceIsPreviousVersionOfVIII/71IsServedByConesearch servicerelated-tohttp://sundog.stsci.edu/ : home page of the VLA FIRST Surveyhttp://sundog.stsci.edu/first/catalogs/history.html : Version Historyhttp://sundog.stsci.edu/cgi-bin/searchfirst : the FIRST search enginehttp://third.llnl.gov/cgi-bin/firstcutout : the FIRST Cutout Server.http://www.cv.nrao.edu/first/ : FIRST page at NRAOhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VIII/59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VIII/59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VIII/59https://vizier.cds.unistra.fr/viz-bin/votable?-source=VIII/59https://vizier.iucaa.in/viz-bin/votable?-source=VIII/59http://vizieridia.saao.ac.za/viz-bin/votable?-source=VIII/59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VIII/59/first (North & South Galactic Caps)https://vizier.cds.unistra.fr/viz-bin/conesearch/VIII/59/first?https://vizier.iucaa.in/viz-bin/conesearch/VIII/59/first?http://vizieridia.saao.ac.za/viz-bin/conesearch/VIII/59/first?GETtext/xml+votable180.050000true0.000150.679883330.0055555555555555562/19 20 21 22 25 35 36 38 40 41 42 111 3/71 75 92 97 99 112 135 139 150 156 172 176 405 406 409 410 421 422 425 426 439 443 490 4/256 279 283 294 295 297 298 299 372 373 374 376 377 378 385 387 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49112https://cdsarc.cds.unistra.fr/viz-bin/moc/VIII/59?format=asciiRadiodefaultVIII/59/firstNorth & South Galactic CapsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLinkGet a fully WCS-qualified FITS image of the targetmeta.refcharFIRSTFIRST Source designationmeta.id;meta.maincharindexedRAJ2000Right Ascension J2000 (hours)pos.eq.ra;meta.mainindexedDEJ2000Declination J2000 (degrees)pos.eq.dec;meta.mainindexedWflag[W] Warning flagmeta.codecharFpeakPeak flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzdoubleFintIntegrated flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzdoubleRmsLocal noise estimatemJyinstr.det.noisefloatMajAxisMajor axis (FWHM)arcsecphys.angSizefloatMinAxisMinor axis (FWHM)arcsecphys.angSizefloatPAPosition angledegpos.posAngfloatfMajFitted MajAxis before deconvolutionarcsecphys.angSizefloatfMinFitted MinAxis before deconvolutionarcsecphys.angSizefloatfPAFitted PA before deconvolutiondegpos.posAngfloatFieldName of the coadded image containing the sourceobs.imagechar