J/AJ/164/122ivo://CDS.VizieR/J/AJ/164/122doi:10.26093/cds/vizier.51640122CDSMcCaffrey T.V.Kimball A.E.Momjian E.Richards G.T.2023-01-17T13:13:58Z2022-12-06T07:31:39ZCDS support team

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

cds-question@unistra.frquasarsactive-galactic-nucleiradio-sourcesvisible-astronomyredshiftedWe present analysis of a homogeneous, optically selected, volume-limited (0.2<z<0.3) sample of 128 radio-quiet quasi-stellar objects (QSOs) recently observed at 6GHz with the Very Large Array (VLA) in A configuration (~0.33" resolution). We compare these new results to earlier (2010-2011) 6GHz observations with the VLA in C configuration (~3.5"). While all of these radio-quiet QSOs (RQQs) were unresolved on a 3.5" scale (~14kpc at z=0.25), we resolve notable complex subgalactic structures in about half of the RQQs at 0.33" resolution (~1.3kpc at z=0.25). By comparison of flux density measurements between the two sets of observations, we demonstrate that significant sub-galactic-scale radio structure is present in at least 70% of the RQQ population and that the central component accounts for an average of ~65% of the total detected radio power. One RQQ, J0935+4819, shows striking symmetric, double-lobed morphology and appears to be the first identified example of a radio-quiet QSO with FRII type morphology on ~arcsec scale (projected size of >~6kpc). In addition to revealing RQQ subgalactic morphology, we employ counterparts from legacy (FIRST at 1.4GHz) and recent (VLA Sky Survey at 3GHz) VLA surveys to investigate radio spectral indices and potential variability over decades-long timescales for a subset of the RQQs and for the cores of radio-intermediate and radio-loud sources in the parent sample of 178 QSOs. These results support the growing notion that the RQQ population is not a monolithic phenomenon but instead consists of a mixture of mainly starburst-powered and jet-powered galaxies.2022AJ....164..122Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)J/ApJ/269/352 : Quasar evolution (Schmidt+, 1983)J/AJ/142/3 : 1.4GHz observations of Stripe 82 (Hodge+, 2011)J/AJ/141/182 : Radio and optical properties of QSOs (Kimball+, 2011)J/ApJ/742/49 : Variable & transient radio sources FIRST (Thyagarajan+, 2011)J/ApJ/768/37 : Radio emission from SDSS quasars (Condon+, 2013)J/ApJ/799/10 : Arp 220 6 and 33GHz images (Barcos-Munoz+, 2015)J/ApJ/831/168 : 6GHz JVLA observations low-z SDSS quasars (Kellermann+, 2016)J/MNRAS/455/4191 : Radio emission from radio-quiet quasars (Zakamska+, 2016)J/A+A/607/A132 : VLBA observations of the COSMOS field (Herrera Ruiz+, 2017)J/ApJS/230/7 : Spectral flux densities from 50MHz to 50GHz (Perley+, 2017)J/A+A/602/A1 : VLA-COSMOS 3 GHz Large Project (Smolcic+, 2017)J/A+A/609/A1 : FR0CAT. a FIRST catalog of FR 0 radio galaxies (Baldi+, 2018)J/A+A/622/A1 : LOFAR 2metre Sky Survey DR1 source catalog (Shimwell+, 2019)J/other/AstBu/74.348 : 164 GHz-peaked spectrum sources (Sotnikova+, 2019)J/A+A/659/A1 : LOFAR Two-metre Sky Survey (LoTSS) DR2 (Shimwell+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/164/122https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/164/122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/164/122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/164/122/table1 (Target quasar radio properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/122/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/122/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/122/table1?GETtext/xml+votable180.050000true122.121530644.13171310.005555555555555556Cone search capability for table J/AJ/164/122/table5 (Multi-frequency data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/122/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/122/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/122/table5?GETtext/xml+votable180.050000true185.04951942.06172890.0055555555555555566/4101 4181 4289-4290 4411 4418 4438 4462-4463 4471 4510 4536 4545 4604 4702 4911 5070 5175 5202 5216 5220 5247 5274 5377 5384 5481 5483 5498 5599 5610 5647 5680 5685 5687 5733 5820-5821 5825 5855 5865 5947 5957 6015 6473 6501 6515 6593 6600 6608 6633 7222 7280 7321 7381 7397 7445-7446 8246 8300 8324 8352 8577 8597 8641 8700 8731 8742 8812 8848 8853 8863 8989 9016 9019 9031 9038 9072 9115 9200 9260 9322 9422 9471 9483 9948 9954 9967 9980 10017 10019 10115 10234 10390 10433 10470-10471 10584 10612 10624 10647 10665 10674 10678 10709 10765 10830 10899 11276 11297 11382 11475 11502 11848 11854 11930 11936 25586 25939 26019 26103 26225 26233 26237 26287 26297 26316 26396 26406 26500 26614 26965 27002 27252 27331 27360 27475 27565 27580 27628 27653-27654 27686 27715 27784 27879 27894 27909 27924 27928 27983 28067 28113 28138 28200 28282 28380 28471 28483 28508 28512 28552 28629 28654 31413 31535 31623 31635 324039.276497240453405e-25 3.975641742184806e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/164/122?format=asciiOpticalRadiodefaultJ/AJ/164/122/table1Target quasar radio propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharMorphMorphology (4)src.morphcharSDSSSDSS identifier; SDSS JHHMMSS.SS+DDMMSS.Smeta.id;meta.maincharprimaryFlux[11.4/581] Peak 6GHz flux density (1)uJy/beamphot.flux.density;em.radio.3-6GHzfloate_Flux[0/17] Uncertainty in Flux6uJy/beamstat.error;phot.fluxfloatCore[11.4/581] Core 6GHz flux density (1)uJyphot.flux.density;em.radio.3-6GHzfloate_Core[0/22] Uncertainty in Core6uJystat.errorfloatTot[11.4/670] Total 6 GHz flux density (1)uJyphot.flux.density;em.radio.3-6GHzfloate_Tot[0/101] Uncertainty in STotuJystat.errorfloatsigma[3.6/10.5] RMS noise of radio imageuJy/beaminstr.det.noise;obs.imagefloatRati[0.08/1] Core to total flux density ratiophot.flux;arith.ratiofloatA/C[0.2/2.6] Ratio of total 6GHz flux density (2)phot.flux;arith.ratiofloatlogL[21.4/23.2] log 6GHz luminosity (3)log(W.Hz**-1)phys.luminosity;em.radiofloatMajAxis[0/2040] Major axis of taget's size (5)masphys.angSize.smajAxis;src.orbitalinte_MajAxis[0/220] Uncertainty in MajAxismasstat.error;phys.angSizeintMinAxis[0/980] Minor axis of taget's size (5)masphys.angSizeinte_MinAxis[0/136] Uncertainty in MinAxismasstat.error;phys.angSizeintOptOptical properties (table2)meta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainJ/AJ/164/122/table2Target quasar optical propertiesSDSSSDSS identifier; SDSS JHHMMSS.SS+DDMMSS.Smeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintz[0.2/0.3] SDSS DR7 Spectroscopic redshiftsrc.redshiftfloatDelta[0.0/6.2] Closest detected radio component angular offset (1)arcsecpos.angDistance;arith.difffloatiMag[-25.3/-23.3] Absolute i band AB magnitudemagphys.magAbsfloatimag[15.3/17.3] Apparent i band AB magnitudemagphot.mag;em.opt.IfloatlogRi[-1.99/0.07] log ratio of6 GHz and i-band flux densities (2)phot.flux;arith.ratiofloatJ/AJ/164/122/table5Multi-frequency dataDatevc[2010/2011] Year of VLAC observationtime.epochF3vs[0.33/394] Epoch1 VLASS 3GHz flux density (3)mJyphot.flux.density;em.radio.1500-3000MHzfloate_F3vs[0/85] Uncertainty in F3vsmJystat.errorfloatDates[2017/2020] Year of VLASS observationtime.epochF6a[0.11/0.67]? VLA's A configuration 6GHz flux density (4)mJyphot.flux.density;em.radio.3-6GHzfloatnullablee_F6a[0.01/0.1]? Uncertainty in F6amJystat.errorfloatnullableDatea[2019]? Year of VLAA observationtime.epochnullableClassClassification (5)src.classcharalpha[-0.7/0] Spectra index (6)spect.indexfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS identifier; SDSS JHHMMSS.SS+DDMMSS.Smeta.id;meta.maincharz[0.2/0.3] SDSS DR7 Spectroscopic redshiftsrc.redshiftfloatF6f[0.37/324] FIRST catalog 1.4GHz flux density (1)mJyphot.flux.density;em.radio.750-1500MHzfloate_F6f[0/1.9] Uncertainty in F6fmJystat.errorfloatDatef[1993/2003] Year of FIRST observationtime.epochF6vc[0.13/322] VLA's C configuration 6GHz flux density (2)mJyphot.flux.density;em.radio.3-6GHzfloate_F6vc[0.01/9.66] Uncertainty in F6vcmJystat.errorfloat