J/A+A/555/A4ivo://CDS.VizieR/J/A+A/555/A4doi:10.26093/cds/vizier.35550004CDSMantovani F.Rossetti A.Junor W.Saikia D.J.Salter C.J.2017-06-21T08:22:46Z2013-06-18T11:30:31ZCDS support team

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

cds-question@unistra.frradio-galaxiesquasarspolarimetryinterferometryWe present multi-frequency VLA polarisation observations of compact steep spectrum (CSS) sources. About half of the sources are point-like even at the resolution of about 0.1x0.1 arcseconds. The remaining sources have double or triple structure. Low values for the percentage of polarised emission in CSS sources is confirmed. On the average, quasars are more polarised than galaxies. A wide range of RM values have been measured. There are clear indications of very large RMs up to about 5585rad/m^2^. CSS galaxies are characterized by RM values that are larger than CSS quasars. The majority of the objects show very large values of RM.2013A&A...555A...4Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/555/A4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/369/380 : CSS/GPS radio sources VLA observations (Fanti+, 2001)J/A+A/402/171 : Faint CSS radio sources at 74 MHz (Tschager+, 2003)J/A+A/426/463 : B3-VLA CSS sample (Orienti+, 2004)J/MNRAS/416/1135 : Unbiased sample of CSS and GPS (Randall+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/555/A4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/555/A4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/555/A4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/555/A4https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/555/A4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/555/A4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/555/A4/table2 (Integrated polarisation percentages for each source)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A4/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A4/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A4/table2?GETtext/xml+votable180.050000true6.454818-26.0368380.005555555555555556Cone search capability for table J/A+A/555/A4/list (List of total intensity, Stokes Q and Stokes U fits images of four sources at 14885MHz (see figure 1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A4/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A4/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A4/list?GETtext/xml+votable180.050000true5.82879-26.31370.0055555555555555566/121 124 759 928 1521 2063 2207 2323 3918 10288 10440 11551 11806 11927 12047 16508-16509 16722 19413 24165 24615 24936 26100 26491 27138 27532 27857 27859 28610 31696 32394 32594 44523https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/555/A4?format=asciiRadiodefaultJ/A+A/555/A4/table2Integrated polarisation percentages for each sourceRSRadio structuremeta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharprimaryISimbad column added by the CDSmeta.ref.urlcharONameOther namemeta.idcharT[G/Q] Optical type: Galaxy or Quasarsrc.classcharz? Redshiftsrc.redshiftfloatnullablem8.0? Polarisation percentage at 8085MHz%phys.polarizationfloatnullablem8.4? Polarisation percentage at 8485MHz%phys.polarizationfloatnullablem14.8? Polarisation percentage at 18885MHz%phys.polarizationfloatnullablem23.2? Polarisation percentage at 23285MHz%phys.polarizationfloatnullableDP8/8.4? Depolarisation index, DP, between 8485 and 8085MHzphys.polarizationfloatnullableDP8.4/14? Depolarisation index, DP, between 14885 and 8485MHzphys.polarizationfloatnullableDP14/23? Depolarisation index, DP, between 23285 and 14885MHzphys.polarizationfloatnullableSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/555/A4/table7Fractional polarisation, depolarisation index and rotation measure for individual components of each sourcerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharONameOther namemeta.idcharT[GQE] Optical type: Galaxy, Quasar or Emptysrc.classcharCompSource componentmeta.code.multipcharm8.0? Polarisation percentage at 8085MHz%phys.polarizationfloatnullablem8.4? Polarisation percentage at 8485MHz%phys.polarizationfloatnullablem14.8? Polarisation percentage at 18885MHz%phys.polarizationfloatnullablem23.2? Polarisation percentage at 23285MHz%phys.polarizationfloatnullableDP8/8.4? Depolarisation index, DP, between 8485 and 8085MHzphys.polarizationfloatnullableDP8.4/14? Depolarisation index, DP, between 14885 and 8485MHzphys.polarizationfloatnullableDP14/23? Depolarisation index, DP, between 23285 and 14885MHzphys.polarizationfloatnullableRM? Rotation Measurerad.m**-2phys.polarization.rotMeasureintnullableRM0? Rotation Measure in the source rest frame RM(rf)=RM(1+z)^2^rad.m**-2phys.polarization.rotMeasureintnullableJ/A+A/555/A4/polarimPolarisation parameters for components of each source at 8085, 8485, 14885, and 23285 MHzCompComponentmeta.code.multipcharONameOther namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharT[GQE] Optical type: Galaxy, Quasar or Emptysrc.classcharFreqFrequency of observation (8085, 8485, 14885, or 23285MHz)MHzem.freqintnullableS? Integrated component flux density (1)mJyphot.flux.density;em.radiofloatnullableu_S[? ] Uncertainty flag on Smeta.code.errorchar3sig? 3{sigma} noise in total-intensity image in mJy/beammJystat.errorfloatnullableSp? Polarised flux density (1)mJyphot.flux.density;em.radiofloatnullableSp2? Second region polarised flux densitymJyphot.flux.density;em.radiofloatnullableSp3? Third region polarised flux densitymJyphot.flux.density;em.radiofloatnullable3sigp? 3{sigma} noise in the polarised-intensity density in mJy/beammJystat.errorfloatnullableEVPA[-90/90]? Electric vector position angledegpos.posAng;phys.polarizationintnullablef_EVPA[a] a: Value in range 50-80meta.codecharEVPA2[-90/90]? Electric vector position angle of second region (2)degpos.posAng;phys.polarizationintnullableEVPA3[-90/90]? Electric vector position angle of third region (2)degpos.posAng;phys.polarizationintnullableamaj? Deconvolved major axis of the componentsarcsecphys.angSizefloatnullablebmin? Deconvolved minor axis of the componentsarcsecphys.angSize;srcfloatnullablePA? Deconvolved position angle of the componentsdegpos.posAngintnullableJ/A+A/555/A4/listList of total intensity, Stokes Q and Stokes U fits images of four sources at 14885MHz (see figure 1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainScale[0.025] Scale of the imagearcsec/pixinstr.scalefloatNx[512] Number of pixels along X-axispixmeta.numberintNy[512] Number of pixels along Y-axispixmeta.numberintFreq[14885] FrequencyMHzem.freqintFileNIName of FITS "Total intensity image" file in subdirectory fitsspect.line.intensity;meta.fitscharFileNQName of FITS "Stokes Q image" file in subdirectory fitsphys.polarization.stokes;meta.fitscharFileNUName of FITS "Stokes U image" file in subdirectory fitsphys.polarization.stokes;meta.fitscharIDownload the I image (total intensity)meta.ref.urlcharQDownload the Stokes Q imagemeta.ref.urlcharUDownload the Stokes U imagemeta.ref.urlcharJ/A+A/555/A4/table1Percentage polarizations for the whole sample and for galaxies and quasars separatelyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreq[8085/23285] Observing frequencyMHzem.freqintu_all[~] Uncertainty flag on allmeta.code.errorcharallPercentage polarization (<m_tot_>) for the whole sample%phys.polarizationfloatu_G[~] Uncertainty flag on Gmeta.code.errorcharGPercentage polarization (<m_tot_>) for galaxies%phys.polarizationfloatu_Q[~] Uncertainty flag on Qmeta.code.errorcharQPercentage polarization (<m_tot_>) for quasars%phys.polarizationfloat