J/MNRAS/380/162ivo://CDS.VizieR/J/MNRAS/380/162doi:10.26093/cds/vizier.73800162CDSJoshi S.A.Battye R.A.Browne I.W.A.Jackson N.Muxlow T.W.B.,Wilkinson P.N.2024-08-12T20:12:53Z2008-10-27T20:08:08ZCDS support team

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

cds-question@unistra.frsurveysquasarspolarimetryWe have used the very large Jodrell Bank VLA Astrometric Survey/Cosmic Lens All-Sky Survey 8.4-GHz surveys of flat-spectrum radio sources to test the hypothesis that there is a systematic alignment of polarization position angle vectors on cosmological scales of the type claimed by Hutsemekers et al. (2005, Cat. <J/A+A/441/915>). The polarization position angles of 4290 sources with polarized flux density 1mJy have been examined. They do not reveal large-scale alignments either as a whole or when split in half into high-redshift (z>=1.24) and low-redshift subsamples. Nor do the radio sources which lie in the specific areas covered by Hutsemekers et al. (<J/A+A/441/915>) show any significant effect. We have also looked at the position angles of parsec-scale jets derived from very long baseline interferometry observations and again find no evidence for systematic alignments. Finally, we have investigated the correlation between the polarization position angle and those of the parsec-scale jets. As expected, we find that there is a tendency for the polarization angles to be perpendicular to the jet angles. However, the difference in jet and polarization position angles does not show any systematic trend in different parts of the sky.2007MNRAS.380..162Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/380/162CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/441/915 : Alignments of quasar polarization vectors (Hutsemekers+ 2005)J/MNRAS/376/371 : Polarisation of flat-spectrum radio sources (Jackson+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/380/162https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/380/162http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/380/162https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/380/162https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/380/162http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/380/162GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/380/162/tablea1 (The 52 common objects in JVAS/CLASS surveys and Hutsemekers et al. (Cat. J/A+A/441/915))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/380/162/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/380/162/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/380/162/tablea1?GETtext/xml+votable180.050000true6.8140583322.699491670.0055555555555555566/2098 4443 4572 4695-4696 5767 6641 7426 7570 7969 8299 8487 8577 9402 9442 9460 9490 9633 9723 10163 10186 10337 10422 10432 11094 11639 11715 12352 18035 18214 18871 18927 19190 19398 19413 19895 20099 20202 23099 23121 26301 26303 27060 27423 27909 28083 28465 28479 28589 31391 31451 316645.5658981862942334e-24 5.5658981862942334e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/380/162?format=asciidefaultJ/MNRAS/380/162/tablea1The 52 common objects in JVAS/CLASS surveys and Hutsemekers et al. (Cat. J/A+A/441/915)NameName (from Hutsemekers et al. (2005, Cat. J/A+A/441/915)meta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainONameName for some sourcesmeta.idcharF(8.4)Total flux at 8.4GHzmJyphot.flux.density;em.radio.6-12GHzintP(8.4)Percentage polarized flux at 8.4GHz%phys.polarizationfloatP(opt)Percentage polarized flux in optical%phys.polarizationfloatPA(8.4)Polarization position angle at 8.4GHzdegpos.posAng;phys.polarizationfloatPA(opt)Polarization position angle in opticaldegpos.posAng;phys.polarizationintPAdiffPosition angle difference, PA(opt)-PA(8.4)degpos.posAng;phys.polarizationfloatJ/MNRAS/380/162/table3VLBI jet anglesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMM+DDMM or JHHMM+DDMMm)meta.id;meta.maincharJAJet angle, measured from north through to eastdegpos.posAngint