J/A+A/545/A113ivo://CDS.VizieR/J/A+A/545/A113doi:10.26093/cds/vizier.35450113CDSPushkarev A.B.Hovatta T.Kovalev Y.Y.Lister M.L.Lobanov A.P.,Savolainen T.Zensus J.A.2017-10-18T08:23:52Z2012-12-28T12:07:08ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiquasarsmagnetic-fieldsWe have investigated a frequency-dependent shift in the absolute position of the optically thick apparent origin of parsec-scale jets ("core shift" effect) to probe physical conditions in ultra-compact relativistic outflows in active galactic nuclei. We used multi-frequency Very Long Baseline Array (VLBA) observations of 191 sources carried out in 12 epochs in 2006 within the Monitoring Of Jets in Active galactic nuclei with VLBA Experiments (MOJAVE) program. The observations were performed at 8.1, 8.4, 12.1, and 15.4GHz. We implemented a method of determining the core shift vector based on (i) image registration by two-dimensional normalized cross-correlation and (ii) model-fitting the source brightness distribution to take into account a non-zero core component offset from the phase center.2012A&A...545A.113Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/545/A113CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/130/1389 : Linear polarization of AGN jets at 15GHz (Lister+, 2005)J/AJ/131/1262 : 15GHz circular polarization images of AGN jets (Homan+, 2007)J/ApJS/171/376 : MOJAVE. III. VLA 1.4GHz images (Cooper+, 2007)J/AJ/137/3718 : 15GHz monitoring of AGN jets with VLBA (Lister+, 2009)J/AJ/138/1874 : MOJAVE. VI. Kinematic analysis of blazar jets (Lister+, 2009)J/ApJ/706/1253 : MOJAVE VII. Blazar jet acceleration (Homan+, 2009)J/ApJ/710/764 : Extended radio emission in MOJAVE blazars (Kharb+, 2010)J/ApJ/722/L7 : Fermi/LAT detected MOJAVE AGNs (Pushkarev+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/545/A113https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/545/A113http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/545/A113https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/545/A113https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/545/A113http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/545/A113GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/545/A113/table1 (Derived core shift vectors)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/545/A113/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/545/A113/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/545/A113/table1?GETtext/xml+votable180.050000true1.5578869-6.39314860.0055555555555555566/18 556 579 700 911 1085 1263 1546 1702 2143 2214 2414 2721 2836 3096 3309 3675 3886 4054 4572 4695 4770 4820 5353 5423 5693 5767 5848 6252 6507 6641 6853 6948 6984 7389 7570 7896 7969 8031 8299 8487 8717 9442 9460 9612 9632-9633 9676 10163 10249 10422 11430 11639 11715 12047 12241 12352 12580 12619 13156 13230 13352 13496 13693 13927 14520 14737 15067 15286 15494 16027 16059 16093 16298 16301 17184 17351 17857 18035 18037 18378 18506 18624 18661 18669 18718 19088 19101 19190 19398 19567 19831 20099 20224 20468 20935 21266 21358 21564 21758 21768 21935 21960 21968 21972 22363 22396 22658 22917 22950 23099 23121 23323 23416 23691 24084 24571 25016 25255 25302 25630 25742 25864 26115 26131 26292 26303 26491 26614 26900 26966 27060 27310 27417 27423 28083 28479 28492 29016 29570 29675 29714 31190 31391 31399 31430 31559 31664 31894 32660 32764 40527 40730 40762 44247 44805 44908 45011 48595 48798 48846 48965 49071https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/545/A113?format=asciidefaultJ/A+A/545/A113/table1Derived core shift vectorsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJSimbad column added by the CDSmeta.ref.urlcharSourceIAU name (HHMM+DDd, B1950)meta.id;meta.maincharprimaryEpochEpoch of observationtime.epochnullablePAM[-180/180] 15.4GHz median jet position angledegpos.posAng;stat.medianfloatPA1[-180/180]? Position angle of the 15.4-8.1GHz core shift vectordegpos.posAngfloatnullableDr1? Magnitude of the 15.4-8.1GHz core shift vectormasphys.angSize;srcfloatnullableDrp1? 15.4-8.1GHz core shift vector in projection on the median position anglemasphys.angSize;srcfloatnullablePA2[-180/180]? Position angle of the 15.4-8.4GHz core shift vectordegpos.posAngfloatnullableDr2? Magnitude of the 15.4-8.4GHz core shift vectormasphys.angSize;srcfloatnullableDrp2? 15.4-8.4GHz core shift vector in projection on the median position anglemasphys.angSize;srcfloatnullablePA3[-180/180]? Position angle of the 15.4-12.1GHz core shift vectordegpos.posAngfloatnullableDr3? Magnitude of the 15.4-12.1GHz core shift vectormasphys.angSize;srcfloatnullableDrp3? 15.4-12.1GHz core shift vector in projection on the median position anglemasphys.angSize;srcfloatnullable_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/545/A113/table4Derived jet parameterszRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceIAU source name (HHMM+DDd, B1950)meta.id;meta.maincharEpochEpoch of observationtime.epochnullableOcl[BQ] Optical classification: BL Lac or QSOsrc.classcharbetaApparent speed value (v/c)phys.veloc;arith.difffloatl_Dr1Limit flag on Dr1meta.code.errorcharDr115-8GHz core shift, {Delta}r_core,15-8GHz_masphys.angSize;srcfloatl_OrvLimit flag on Orvmeta.code.errorcharOrvCore shift measure, {Omega}_rv_pc.GHzphys.velocfloatl_B1Limit flag on B1meta.code.errorcharB1Magnetic field at 1pc (Gauss)0.0001Tphys.magFieldfloatl_BcoreLimit flag on Bcoremeta.code.errorcharBcoreCore magnetic field (Gauss)0.0001Tphys.magFieldfloatl_rcoreLimit flag on rcoremeta.code.errorcharrcoreCore radius at 15.6GHzpcphys.size.radiusfloat