J/AJ/162/270ivo://CDS.VizieR/J/AJ/162/270doi:10.26093/cds/vizier.51620270CDSRichards G.T.Mccaffrey T.V.Kimball A.Rankine A.L.Matthews J.H.,Hewett P.C.Rivera A.B.2022-09-05T13:41:50Z2022-03-18T06:47:45ZCDS support team

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

cds-question@unistra.frquasarsradio-spectroscopyvisible-astronomyultraviolet-astronomyredshiftedWe discuss a probe of the contribution of wind-related shocks to the radio emission in otherwise radio-quiet quasars. Given (1) the nonlinear correlation between UV and X-ray luminosity in quasars, (2) that such a correlation leads to higher likelihood of radiation-line-driven winds in more luminous quasars, and (3) that luminous quasars are more abundant at high redshift, deep radio observations of high-redshift quasars are needed to probe potential contributions from accretion disk winds. We target a sample of 50 z~1.65 color-selected quasars that span the range of expected accretion disk wind properties as traced by broad CIV emission. 3GHz observations with the Very Large Array to an rms of ~10{mu}Jy/beam probe to star formation rates of ~400M{sun}/yr, leading to 22 detections. Supplementing these pointed observations are survey data of 388 sources from the LOFAR Two-meter Sky Survey Data Release 1 that reach comparable depth (for a typical radio spectral index), where 123 sources are detected. These combined observations reveal a radio detection fraction that is a nonlinear function of CIV emission-line properties and suggest that the data may require multiple origins of radio emission in radio-quiet quasars. We find evidence for radio emission from weak jets or coronae in radio-quiet quasars with low Eddington ratios, with either (or both) star formation and accretion disk winds playing an important role in optically luminous quasars and correlated with increasing Eddington ratio. Additional pointed radio observations are needed to fully establish the nature of radio emission in radio-quiet quasars.2021AJ....162..270Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/270CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/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)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)J/AJ/141/182 : Radio and optical properties of QSOs (Kimball+, 2011)J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)J/MNRAS/410/860 : Redshift dependence of BAL QSOs (Allen+, 2011)J/ApJ/768/37 : Radio emission from SDSS quasars (Condon+, 2013)J/ApJS/206/4 : SED & bolometric corrections luminous QSOs (Krawczyk+, 2013)J/ApJS/216/4 : SDSS-RM project: technical overview (Shen+, 2015)J/MNRAS/455/4191 : Radio emission from radio-quiet quasars (Zakamska+, 2016)J/A+A/602/A2 : VLA-COSMOS 3 GHz Large Project. II. (Smolcic+, 2017)J/ApJ/841/76 : Intrinsic far-IR SED of luminous AGNs (Lyu+, 2017)J/MNRAS/465/2120 : CIV-based virial black hole masses (Coatman+, 2017)J/MNRAS/477/830 : Radio flux density of extremely red quasars (Hwang+, 2018)J/A+A/622/A1 : LOFAR Two-metre Sky Survey DR1 source catalog (Shimwell+, 2019)J/A+A/622/A15 : Broad absorption line quasars in LDR1 (Morabito+, 2019)J/MNRAS/492/719 : Chandra observations of 2106 radio-quiet QSOs (Timlin+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/270https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/270http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/270https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/270https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/270http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/270GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/162/270/table1 (Target quasar properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/270/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/270/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/270/table1?GETtext/xml+votable180.050000true3.42688-0.403513890.0055555555555555566/4337 4419 4805 4830 4933 4953 5214 5340 5887 6019 6497 6622 8288 8554 9115-9116 9383 9471 9961 10323 10442 10895 11042 11231 11263 11354 11372 11410 12382 17303 17498 17511 18086 18387 18777 19052 26438 26466 26555 26953 26981 26996 27047 27060 27648 28235 28260 28410 28516 326801.987820871092403e-24 1.987820871092403e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/162/270?format=asciiUVOpticalRadiodefaultJ/AJ/162/270/table1Target quasar propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS identifiermeta.id;meta.maincharRAJ2000[3.42/359] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-9.64/65.6] Declination (J2000)degpos.eq.dec;meta.mainz[1.65/1.66] Spectroscopic redshiftsrc.redshiftfloatIMAG[-27.9/-26] Absolute I band AB magnitudemagphys.magAbs;em.opt.IfloatL1350[45.6/46.6] log 1350{AA} source luminositylog(W)phys.luminosity;em.UVfloatBAL?[0/1] A BALQSO source?meta.codeintF3[19.5/56300] Flux density at 3GHzuJyphot.flux.density;em.radio.1500-3000MHzfloate_F3[0/150]? Uncertainty in L3 (1)uJystat.error;phot.flux.densityfloatnullableL3[23.4/26.9] log 3GHz source luminosity (1)log(W.Hz**-1)phys.luminosity;em.radiofloatSimbadSimbad column added by the CDSmeta.ref.urlchar