Southern compact extragalactic radio sources J/MNRAS/485/88 ivo://CDS.VizieR/J/MNRAS/485/88 doi:10.26093/cds/vizier.74850088 CDS Petrov L. de Witt A. Sadler E.M. Phillips C. Horiuchi S. 2024-08-19T20:18:01Z 2022-10-18T13:31:59Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr interferometry surveys radio-sources astrometry We present the second catalogue of accurate positions and correlated flux densities for 1100 compact extragalactic radio sources that were not observed before 2008 at high angular resolution. The catalogue spans the declination range [-90{deg},-30{deg}] and was constructed from 19 24-h VLBI observing sessions with the Australian Long Baseline Array at 8.3GHz. The catalogue presents the final part of the program that was started in 2008. The goals of that campaign were (1) to extend the number of compact radio sources with precise coordinates and measure their correlated flux densities, which can be used for phase referencing very long baseline interferometry (VLBI) and Atacama Large Millimeter/submillimeter Array (ALMA) observations, geodetic VLBI, search for sources with significant offsets with respect to Gaia positions, and space navigation; (2) to extend the complete flux-limited sample of compact extragalactic sources to the Southern hemisphere; and (3) to investigate the parsec-scale properties of sources from the high-frequency AT20G survey. The median uncertainty of the source positions is 3.5mas. As a result of this VLBI campaign, the number of compact radio sources south of declination -40{deg} that have measured VLBI-correlated flux densities and positions known to milliarcsecond accuracy has increased by over a factor of 6. 2019MNRAS.485...88P https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/485/88 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/485/88 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/485/88 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/485/88 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/485/88 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/485/88 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/485/88 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/485/88/table4 (The LCS position catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/485/88/table4? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/485/88/table4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/485/88/table4? 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Should Not be used for identification. meta.record int Name Object name (LCS JHHMM-DDMM) meta.id;meta.main char IVS IVS source name meta.id char Flux The correlated flux density at 8.3GHz Jy phot.flux.density;em.radio.6-12GHz float FWHM The full width half maximum (FWHM) of the Gaussian fit mas spect.line.width;meta.modelled float e_FWHM ? Error on FWHM mas stat.error;phys.angSize float nullable
J/MNRAS/485/88/table4 The LCS position catalog Simbad Simbad column added by the CDS meta.ref.url char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Object name (LCS JHHMM-DDMM) meta.id;meta.main char IVS IVS source name meta.id char RAJ2000 Right ascension (J2000) pos.eq.ra;meta.main DEJ2000 Declination (J2000) pos.eq.dec;meta.main e_RAJ2000 Uncertainty in right ascension without cos({delta}) factor mas stat.error;pos.eq.ra float e_DEJ2000 Uncertainty in declination mas stat.error;pos.eq.dec float Corr Correlation between right ascension and declination stat.correlation float Nobs Number of used observations meta.number int Flux1 ? Median correlated flux density at baseline projection lengths in a range [0,10] millions wavelengths Jy phot.flux.density;em.radio.6-12GHz float nullable Flux2 ? Median correlated flux density at baseline projection lengths in a range [10,40] millions wavelengths Jy phot.flux.density;em.radio.6-12GHz float nullable Flux3 ? Median correlated flux density at baseline projection lengths in a range [40,300] millions wavelengths Jy phot.flux.density;em.radio.6-12GHz float nullable e_Flux1 ? Error on Flux1 Jy stat.error float nullable e_Flux2 ? Error on Flux2 Jy stat.error float nullable e_Flux3 ? Error on Flux3 Jy stat.error float nullable