J/ApJS/179/306ivo://CDS.VizieR/J/ApJS/179/306doi:10.26093/cds/vizier.21790306CDSRussell J.Ryan R.E.JrCohen S.H.Windhorst R.A.Waddington I.2018-01-30T07:18:24Z2010-02-05T11:32:29ZCDS support team

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

cds-question@unistra.frhst-photometryradio-galaxiesgalaxy-classification-systemsWe report on a statistical study of 51 radio galaxies at the millijansky flux level selected from the Faint Images of the Radio Sky at Twenty cm survey, including their optical morphologies and structure obtained with the Hubble Space Telescope (HST). Our optical imaging is significantly deeper (~2mag) than previous studies with the superior angular resolution of space-based imaging. We that find 8/51 (16%) of the radio sources have no optically identifiable counterpart to AB~24mag. For the remaining 43 sources, only 25 are sufficiently resolved in the HST images to reliably assign a visual classification: 15 (60%) are elliptical galaxies, two (8%) are late-type spiral galaxies, one (4%) is an S0, three (12%) are pointlike objects (quasars), and four (16%) are merger systems. We find a similar distribution of optical types with measurements of the Sersic index.2008ApJS..179..306Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/179/306CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/179/306https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/179/306http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/179/306https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/179/306https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/179/306http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/179/306GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/179/306/table5 (Morphological and structural results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/179/306/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/179/306/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/179/306/table5?GETtext/xml+votable180.050000true5.579583-1.5083330.005555555555555556Cone search capability for table J/ApJS/179/306/table2 (Targeted sources removed from sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/179/306/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/179/306/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/179/306/table2?GETtext/xml+votable180.050000true3.265625-1.384776940.0055555555555555566/4853 5075 5086 5182 5262 5290 5327 5367 5481 5828 5860 5873 5922 5980 6255 6417 6495 6611 7178 7266 7300 8345 8520 8717 8919 8972 9070 9252 9272 9330 9457 9466 9705 9742 9945 10000 10052 10317 10411 10527 10549 10774 10841 10843 10888 10912 10938 11080 11099 11101 11392 11434 11461 17149 17662 17769 18060 18069 18081 23210 26017 26022 26089 26189 26248 26292 26491 26963 27009 27044 27486 27515 27595 27657 27728 27884 28015 28026 28033 28039 28249 28356 28517 324262.381800341673347e-19 2.821731604724377e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/179/306?format=asciiOpticalRadiodefaultJ/ApJS/179/306/table5Morphological and structural resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTRadio source name (JHHMMSS.s+DDMMSS) (G1)meta.id;meta.maincharprimaryRe? Effective radius (1)arcsecphys.angSizefloatnullablen? The Sersic index (2)stat.fit.paramfloatnullablee_n? Error in nstat.errorfloatnullableChi2V? Reduced Chi^2^_{nu}_ (3)stat.fit.chi2floatnullableANNt? Artificial Neural Network type classification (4)meta.code;src.morphfloatnullableVisTypeMorphology of optical counterpart (5)meta.code;src.morphcharWFPC2WFPC2 target (6)meta.idcharRadDetails from the FIRST catalog (Becker et al. 2003, Cat. VIII/71)meta.ref.urlchar_RAPosition (derived from FIRST name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (derived from FIRST name) (declination part)degpos.eq.dec;meta.mainJ/ApJS/179/306/table4Flux resultsBand[VI] V or I band (1)instr.bandpasscharLR? Likelihood ratio (3)stat.likelihood;arith.ratiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTRadio source name (JHHMMSS.s-DDMMSS) (G1)meta.id;meta.maincharmag? V or I band magnitudemagphot.magfloatnullableSB? Surface brightness within effective radius (see Re in table 5)mag.arcsec**-2phot.mag.sbfloatnullableS1.4GHzIntegrated flux at 1.4GHz from FIRST cat.mJyphot.flux.density;em.radio.750-1500MHzfloatDepth? Field depth (2)magphot.magfloatnullablei'mag? SDSS-DR5 i' band magnitude (4)magphot.mag;em.opt.Ifloatnullablee_i'mag? Error in i'magmagstat.error;phot.mag;em.opt.Ifloatnullable(g'-r')? SDSS-DR5 (g'-r') color index (4)magphot.color;em.opt.B;em.opt.Rfloatnullablee_(g'-r')? Error in (g'-r') color indexmagstat.errorfloatnullable(r'-i')? SDSS-DR5 (r'-i') color index (4)magphot.color;em.opt.R;em.opt.Ifloatnullablee_(r'-i')? Error in (r'-i') color indexmagstat.errorfloatnullableSDSSDetails from SDSS-DR5 and SDSS-DR7meta.ref.urlcharJ/ApJS/179/306/table3Unidentified radio sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTRadio source name (JHHMMSS.s-DDMMSS) (G1)meta.id;meta.maincharPassbandF814W or F606W bandpassinstr.bandpasscharLimitLimiting I or V band AB magnitude (1)magphot.magfloatS1.4GHzIntegrated flux at 1.4GHz from FIRST cat.mJyphot.flux.density;em.radio.750-1500MHzfloatJ/ApJS/179/306/table2Targeted sources removed from samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFIRSTRadio source name (JHHMMSS.s-DDMMSS) (G1)meta.id;meta.maincharRAJ2000Right ascension in degree (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in degree (J2000)degpos.eq.dec;meta.mainS1.4GHzIntegrated flux at 1.4GHz from FIRST, cat. VIII/71mJyphot.flux.density;em.radio.750-1500MHzfloatWFPC2WFPC2 target (targname) (1)meta.idcharRadDetails from the FIRST catalog (Becker et al. 2003, Cat. VIII/71)meta.ref.urlchar