J/A+A/601/A35ivo://CDS.VizieR/J/A+A/601/A35doi:10.26093/cds/vizier.36010035CDSPerley R.A.Meisenheimer K.2017-05-11T14:28:36Z2017-04-25T08:31:51ZCDS support team

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

cds-question@unistra.frquasarsradio-sources3C 273, the nearest bright quasar, comprises a strong nuclear core and a bright, one-sided jet extending ~23 arcseconds to the SW. The source has been the subject of imaging campaigns in all wavebands. Extensive observations of this source have been made with the Very Large Array and other telescopes as part of a campaign to understand the jet emission mechanisms. Partial results from the VLA radio campaign have been published, but to date, the complete set of VLA imaging results has not been made available. We have utilized the VLA to determine the radio structure of 3C273 in Stokes I, Q, and U, over the widest possible frequency and resolution range. The VLA observed the source in all four of its configurations, and with all eight of its frequency bands, spanning 73.8MHz to 43GHz. The data were taken in a pseudo-spectral line mode to minimize the VLA's correlator errors, and were fully calibrated with subsequent self-calibration techniques to maximise image fidelity. Images in Stokes parameters I, Q, and U, spanning a resolution range from 6 arcseconds to 88 milliarcseconds are presented. Spectral index images, showing the evolution of the jet component are shown. Polarimetry demonstrates the direction of the magnetic fields responsible for the emission, and rotation measure maps show the RM to be very small with no discernible trend along or across the jet. This paper presents a small subset of these images to demonstrate the major characteristics of the source emission. A library of all ~500 images has been made available for open, free access by interested parties.2017A&A...601A..35Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/601/A35CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toftp://ftp.aoc.nrao.edu/pub/staff/rperley/3C273/ : All imageshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/601/A35https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/601/A35http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/601/A35https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/601/A35https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/601/A35http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/601/A35GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/601/A35/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/601/A35/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/601/A35/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/601/A35/list?GETtext/xml+votable180.050000true186.638552.328680.0055555555555555566/26292 26294https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/601/A35?format=asciiRadiodefaultJ/A+A/601/A35/table1VLA observing logDurDurationhtime.durationintConf[ABCD] Configurationphys.atmol.configuration;instr.setupcharBandsObserved bands (1)instr.bandpasscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintProjectProject namemeta.id;obscharDateObservation datetime.epoch;obsnullableJ/A+A/601/A35/listList of fits imagesNxNumber of pixels along X-axismeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datetime.epoch;obsnullableFreqObserved frequencyGHzem.freqdoublesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fits (1)meta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar