J/ApJ/732/45ivo://CDS.VizieR/J/ApJ/732/45doi:10.26093/cds/vizier.17320045CDSSajina A.Partridge B.Evans T.Stefl S.Vechik N.Myers S.,Dicker S.Korngut P.2018-01-08T06:38:13Z2012-12-04T13:36:29ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiradio-galaxiesradio-continuum-emissionpolarimetryWe present flux densities and polarization percentages of 159 radio galaxies based on nearly simultaneous Very Large Array observations at four frequencies, 4.86, 8.46, 22.46, and 43.34GHz. This sample is selected from the high-frequency Australia Telescope 20GHz (AT20G) survey and consists of all sources with flux density S_20GHz_>40mJy in an equatorial field of the Atacama Cosmology Telescope (ACT) survey. For a subset of 25 of these sources, we used the Green Bank Telescope (GBT) to obtain 90GHz data. We find that, as expected, this sample consists of flatter spectrum and more compact or point-like sources than low-frequency-selected samples. In the K band, variability is typically <~20%, although there are exceptions. The higher frequency data are well suited to the detection of extreme gigahertz peak spectrum sources. The inclusion of the 43GHz data causes the relative fraction of inverted spectrum sources to go down and of peaked spectrum sources to go up when compared with the AT20G survey results. The trend largely continues with the inclusion of the 90GHz data, although ~10% of the sources with GBT data show a spectral upturn from 43GHz to 90GHz. The measured polarization fractions are typically <5%, although in some cases they are measured to be up to ~20%. For sources with detected polarized flux in all four bands, about 40% of the sample, the polarization fractions typically increase with frequency. This trend is stronger for steeper spectrum sources as well as for the lower flux density sources.2011ApJ...732...45Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/732/45CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/731/100 : 148GHz ACT extragalactic sources catalog (Marriage+, 2011)J/ApJ/718/587 : The Fermi-AT20G catalog (Mahony+, 2010)J/MNRAS/402/2403 : AT20G Survey Catalog (Murphy+, 2010)J/MNRAS/384/775 : Bright Source Sample of AT20G Survey (Massardi+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/732/45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/732/45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/732/45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/732/45https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/732/45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/732/45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/732/45/table4 (GBT 90GHz measured and extrapolated fluxes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/732/45/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/732/45/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/732/45/table4?GETtext/xml+votable180.050000true33.925-2.382220.005555555555555556Cone search capability for table J/ApJ/732/45/table3 (Flux densities and polarization percentages for the 159 radio galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/732/45/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/732/45/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/732/45/table3?GETtext/xml+votable180.050000true1.2791667-1.54555560.0055555555555555566/17399 17401 17402 17717 17718 17719 17720 17723 17725 17754 17763 17798 17812 17813 17817 17824 17825 17971 17990 17996 17999 18000 18001 18002 18006 18017 18051 18053 18056 18062 18066 18073 18084 18089 18680 18681 18683 18743 18744 18745 18750 18769 18772 18784 18786 18787 18821 18826 18827 18835 19005 19013 19023 19027 19034 19041 19043 19080 19087 19088 19092 19104 19105 19106 21747 21749 21750 21751 21757 21758 21814 21819 21822 21893 21894 21905 21913 21914 21924 21928 22767 22776 22782 23115 23116 23121 23144 23177 23179 23184 23204 23210 25587 26198 26254 26272 26273 26274 26276 26280 26873 26876 26878 26931 26934 26937 26966 26976 26984 27011 27013 27025 27026 27040 27044 27194 27195 27196 27206 27212 27214 27219 27220 27232 27241 27272 27281 27284 27285 27296 30010 30012 30015 30021 30023 30034 30036 30040 30050 30091 30094 31309 31384 40949 40959 491353.220269899637266e-24 5.963462613277208e-23https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/732/45?format=asciiRadiodefaultJ/ApJ/732/45/table4GBT 90GHz measured and extrapolated fluxesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAT20GSource name (JHHMMSS+DDMMSS)meta.id;meta.maincharS90m90GHz measured fluxmJyphot.flux.density;em.mm.50-100GHzfloate_S90mS90m uncertaintymJystat.errorfloatS90e? 90GHz extrapolated flux (VLA S_K_) based on {alpha}_KQ_ spectral indexmJyphot.flux.density;em.mm.50-100GHzfloatnullableRatio[0.3/3]? Ratio of measured-to-expected flux densitiesphot.flux;arith.ratiofloatnullableS90e2? 90GHz extrapolated flux (S_K_x1.24) (1)mJyphot.flux.density;em.mm.50-100GHzfloatnullableR2[0.3/3.8]? Second ratiophot.flux;arith.ratiofloatnullableNEDSimbad column added by the CDSmeta.refchar_RAPositions from AT20G name (right ascension part)degpos.eq.ra;meta.main_DEPositions from AT20G name (declination part)degpos.eq.dec;meta.mainJ/ApJ/732/45/table3Flux densities and polarization percentages for the 159 radio galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAT20GSource name (JHHMMSS+DDMMSS or HHMM+DDM for 3 calibrators) (1)meta.id;meta.maincharprimarym_AT20G[CJT] Source flag (C=Core, J=Jet, T=Total) (2)meta.code.multipcharz? Redshiftsrc.redshiftfloatnullableSC? C band (4.86GHz) flux densitymJyphot.flux.density;em.radio.3-6GHzfloatnullablee_SC? Uncertainty in SC (3)mJystat.errorfloatnullableSX? X band (8.46GHz) flux densitymJyphot.flux.density;em.radio.6-12GHzfloatnullablee_SX? Uncertainty in SX (3)mJystat.errorfloatnullableSK? K band (22.46GHz) flux densitymJyphot.flux.density;em.radio.12-30GHzfloatnullablee_SK? Uncertainty in SK (3)mJystat.errorfloatnullableSQ? Q band (43.34GHz) flux densitymJyphot.flux.density;em.mm.30-50GHzfloatnullablee_SQ? Uncertainty in SQ (3)mJystat.errorfloatnullablel_pCLimit flag on pCmeta.code.errorcharpC? C band (4.86GHz) polarization fraction%phys.polarizationfloatnullablee_pC? Uncertainty in pC (3)%stat.errorfloatnullablel_pXLimit flag on pXmeta.code.errorcharpX? X band (8.46GHz) polarization fraction%phys.polarization;em.X-rayfloatnullablee_pX? Uncertainty in pX (3)%stat.errorfloatnullablel_pKLimit flag on pKmeta.code.errorcharpK? K band (22.46GHz) polarization fraction%phys.polarization;em.IR.Kfloatnullablee_pK? Uncertainty in pK (3)%stat.errorfloatnullablel_pQLimit flag on pQmeta.code.errorcharpQ? Q band (43.34GHz) polarization fraction%phys.polarization;em.IR.15-30umfloatnullablee_pQ? Uncertainty in pQ (3)%stat.errorfloatnullableClassClass (GPS (GHz peak spectrum), Inverted or Upturned)src.classcharGSimbad column added by the CDSmeta.ref.urlcharSEDPlot the spectrum with SPECFIND (Vollmer et al. 2009, Cat. VIII/85)meta.ref.urlcharNEDSimbad column added by the CDSmeta.refchar_RAPositions from AT20G name or calibrator position from VLA calibrator Manual of Greg Taylor (right ascension part)degpos.eq.ra;meta.main_DEPositions from AT20G name or calibrator position from VLA calibrator Manual of Greg Taylor (declination part)degpos.eq.dec;meta.main