J/A+A/476/L17ivo://CDS.VizieR/J/A+A/476/L17doi:10.26093/cds/vizier.34769017CDSAgudo I.Bach U.Krichbaum T.P.Marscher A.P.Gonidakis I.,Diamond P.J.Perucho M.Alef W.Graham D.A.Witzel A.Zensus J.A.,Bremer M.Acosta-Pulido J.A.Barrena R.2008-03-06T20:40:10Z2008-03-06T21:38:16ZCDS support team

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

cds-question@unistra.frquasarsradio-sourcesinterferometryNRAO 150, a compact and bright radio to mm source showing core/jet structure, has been recently identified as a quasar at redshift z=1.52 through a near-IR spectral observation. The aim is to study the jet kinematics on the smallest accessible scales and to compute the first estimates of its basic physical properties. We have analysed the ultra-high-resolution images from a new monitoring program at 86GHz and 43GHz with the Global mm VLBI Array and the VLBA, respectively. An additional archival calibration VLBA data set, covering the period from 1997 to 2007, has been used. Our data show an extreme projected counter-clockwise jet position angle swing at an angular rate of up to ~11{deg}/yr within the inner ~3pc of the jet, which is associated with a non-ballistic superluminal motion of the jet within this region.2007A&A...476L..17Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/476/L17CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/476/L17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/476/L17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/476/L17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/476/L17https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/476/L17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/476/L17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/A+A/476/L17/table186GHz and 43GHz image informationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintImageImage information (86GHz, 43GHz or 8.4GHz)em.freqcharEpochEpoch of observationyrtime.epoch;obsfloatTintIntergation timemintime.epochintDnuobsObserving frequency bandwidthMHzinstr.bandwidthintBitsNumber of bits used for the signal digitalisation samplingmeta.numberintFWHMbFWHM minor axes of the restoring beamuarcsecphys.angSize;instr.beamintFWHMaFWHM major axes of the restoring beamuarcsecphys.angSize;instr.beamintPA[-90/90] Orientation angle of the restoring beamdegpos.parallaxfloatSintIntegrated total flux density (86, 43 or 8.4GHz)Jyphot.flux.density;em.radiofloatSpeakPeak flux density (in Jy/beam)Jyphot.flux.density;em.radiofloatNoiseNoise level of the resulting images (in mJy/beam)mJyinstr.det.noisefloatAllDisplay data of tables 1 and 2meta.ref.urlcharJ/A+A/476/L17/table286GHz, 43GHz and 8.4GHz circular-Gaussian model-fit parametersCompModel componentmeta.id;stat.fitcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintImageImage information (86GHz, 43GHz or 8.4GHz)em.freqcharEpochEpoch of observationyrtime.epoch;obsfloatl_S[<~ ] Limit flag on S (1)meta.code.errorcharSFlux densityJyphot.flux.density;em.radiofloate_S? rms uncertainty on SJystat.errorfloatnullabler? Projected distance to the coremaspos.angDistancefloatnullablee_r? rms uncertainty on rmasstat.errorfloatnullablePA[-170/170]? Position angle with respect to the coredegpos.posAngfloatnullablee_PA? rms uncertainty on PAdegstat.errorfloatnullablel_FWHMLimit flag on FWHM (1)meta.code.error;phys.angSizecharFWHM? FWHM sizemasphys.angSizefloatnullablee_FWHM? rms uncertainty on FWHMmasstat.error;phys.angSizefloatnullableAllDisplay data of tables 1 and 2meta.ref.urlcharJ/A+A/476/L17/table3Proper motion results (for Q1, Q2 and Q3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCompModel component (Q1, Q2 and Q3)meta.id;stat.fitcharNNumber of data points for the fit of the trajectorymeta.numberint<PA>Mean position angledegpos.posAng;stat.meanfloate_<PA>rms uncertainty on <PA>degstat.errorfloat<PA/dt>Mean angular speeddeg/yrphys.veloc.angfloate_<PA/dt>rms uncertainty on <PA/dt>deg/yrstat.errorfloat<pm>Mean proper motionmas/yrpos.pmfloate_<pm>rms uncertainty on <pm>mas/yrstat.error;pos.pmfloatb<pm>Superluminal apparent speed for <pm>cphys.velocfloate_b<pm>rms uncertainty on b<pm>cstat.errorfloat<pmrad>Mean radial component of proper motionmas/yrpos.pmfloate_<pmrad>rms uncertainty on <pmrad>mas/yrstat.errorfloat<pmnor>Mean normal component of proper motionmas/yrpos.pmfloate_<pmnor>rms uncertainty on <pmnor>mas/yrstat.errorfloatb<pmnor>Superluminal apparent speed for <pmnor>cphys.velocfloate_b<pmnor>rms uncertainty on b<pmnor>cstat.errorfloat