J/MNRAS/455/4191ivo://CDS.VizieR/J/MNRAS/455/4191doi:10.26093/cds/vizier.74554191CDSZakamska N.L.Lampayan K.Petric A.Dicken D.Greene J.E.,Heckman T.M.Hickox R.C.Ho L.C.Krolik J.H.Nesvadba N.P.H.,Strauss M.A.Geach J.E.Oguri M.Strateva I.V.2024-08-15T20:17:02Z2016-10-24T14:48:58ZCDS support team

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

cds-question@unistra.frquasarsradio-sourcesinfrared-sourcesRadio emission from radio-quiet quasars may be due to star formation in the quasar host galaxy, to a jet launched by the supermassive black hole, or to relativistic particles accelerated in a wide-angle radiatively driven outflow. In this paper, we examine whether radio emission from radio-quiet quasars is a byproduct of star formation in their hosts. To this end, we use infrared spectroscopy and photometry from Spitzer and Herschel to estimate or place upper limits on star formation rates in hosts of ~300 obscured and unobscured quasars at z<1. We find that low-ionization forbidden emission lines such as [NeII] and [NeIII] are likely dominated by quasar ionization and do not provide reliable star formation diagnostics in quasar hosts, while polycyclic aromatic hydrocarbon (PAH) emission features may be suppressed due to the destruction of PAH molecules by the quasar radiation field. While the bolometric luminosities of our sources are dominated by the quasars, the 160{mu}m fluxes are likely dominated by star formation, but they too should be used with caution. We estimate median star formation rates to be 6-29M_{sun}_/yr, with obscured quasars at the high end of this range. This star formation rate is insufficient to explain the observed radio emission from quasars by an order of magnitude, with log(L_radio,obs_/L_radio,SF_)=0.6-1.3 depending on quasar type and star formation estimator. Although radio-quiet quasars in our sample lie close to the 8-1000{mu}m infrared/radio correlation characteristic of the star-forming galaxies, both their infrared emission and their radio emission are dominated by the quasar activity, not by the host galaxy.2016MNRAS.455.4191Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/455/4191CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/133/303 : Optical microvariability in radio-quiet QSOs (Carini+, 2007)J/ApJ/657/116 : X-ray & UV parameters of radio-quiet quasars (Kelly+, 2007)J/MNRAS/383/1513 : 2MASS, SDSS and FIRST fluxes of QSOs (Labita+, 2008)J/ApJ/696/924 : UV and X-Ray radio-quiet QSOs (Gibson+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/455/4191https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/455/4191http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/455/4191https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/455/4191https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/455/4191http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/455/4191GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/455/4191/table1 (160 micron photometry and photometric constraints on star formation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/455/4191/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/455/4191/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/455/4191/table1?GETtext/xml+votable180.050000true27.3855417-0.80102780.005555555555555556Cone search capability for table J/MNRAS/455/4191/table2 (IRS spectroscopy of type 2 quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/455/4191/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/455/4191/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/455/4191/table2?GETtext/xml+votable180.050000true10.71915.54633330.0055555555555555566/269 530 647 725 2216 4352 4405 4412 4536 4648 4721 4867 5016 5099 5333 5712 5795 5806 5819 5894 6015 6046 6090 6109 6462 6502 6559 6593 6625 7171 7425 7446 7502 7522 8217 8420 8612 8695 8943 8973 9147 9223 9454 9632 9635 10182 10202 10213 10374 10588 10641 10743 10979 11132 11270 11303 11339 11416 11456 12630-12631 17407 17492 17806 17816 17821 17834 17983 18007 18024 18028 18034 18773 19637 19678 19762 19830 21873 23182 23205 23216 25851 25916 26169 26212 26292-26293 26407 26491 26942 26973 27105 27230 27343 27593 27681 27724 27734 27767 27944 27976 28031 28033 28113 32408 32499 32508https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/455/4191?format=asciiInfraredRadiodefaultJ/MNRAS/455/4191/table1160 micron photometry and photometric constraints on star formationSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSDSS or 2MASS name (JHHMMSS.ss+DDMMSS.s)meta.idcharSubsample[T2 T1red] subsample object type (1)src.classcharzRedshiftsrc.redshiftfloatlogL12um? Log of nu Lnu at rest-frame 12umlog(1e-07W)phys.luminosityfloatnullablel_F160um5 sigma upper limit flag on F160ummeta.code.errorcharF160umObserved flux at 160 micronmJyphot.flux.density;em.mm.1500-3000GHzfloatSFRUpper limit on star formation rate from 160um fluxsolMass/yrphys.SFR;stat.maxintL1.4GHzSFUpper limit on the radio luminosity nuLnu due to star formation at rest-frame 1.4GHzlog(1e-07W)phys.luminosity;em.radiofloatl_L1.4GHzobs5 sigma upper limit flag on L1.4GHzobsmeta.code.errorcharL1.4GHzobsObserved radio luminosity nuLnu, k-corrected to rest-frame 1.4GHzlog(1e-07W)phys.luminosity;em.radiofloatComComment on how the object was targeted for observationsmeta.notecharSloan/2MDisplay the SDSS or 2MASS datameta.ref.urlchar_RAPositions from Name (right ascension part)degpos.eq.ra;meta.main_DEPositions from Name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/455/4191/table2IRS spectroscopy of type 2 quasarsSimbadNameSimbad column added by the CDSmeta.idcharSloanDisplay the SDSS datameta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSDSS name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharzRedshiftsrc.redshiftfloatS[9.7um]Strength of the silicate feature at 9.7umspect.line.intensityfloatSLfactorOrder stitching factor (1)instr.paramfloatl_logL1.4GHz5 sigma upper limit flag on lognuLnumeta.code.errorcharlogL1.4GHzObserved radio luminosity nu Lnu, k-corrected to rest-frame 1.4GHzlog(1e-07W)phys.luminosity;em.radiofloatl_L[NeII]3 sigma upper limit flag on LNeIImeta.code.errorcharL[NeII]Luminosity of [NeII]12.8um emission line1e+35Wphys.luminosityfloatl_L[NeIII]3 sigma upper limit flag on LNeIIImeta.code.errorcharL[NeIII]? Luminosity of [NeIII]15.6um emission line1e+35Wphys.luminosityfloatnullablel_LPAH6.2um3 sigma upper limit flag on LPAH6.2ummeta.code.errorcharLPAH6.2umLuminosity of PAH 6.2um emission line1e+35Wphys.luminosityfloatl_LPAH11.3um3 sigma upper limit flag on LPAH11.3ummeta.code.errorcharLPAH11.3umLuminosity of PAH 11.3um emission line1e+35Wphys.luminosityfloatComComment on how the object was targeted for observationsmeta.notechar_RAPositions from Name (right ascension part)degpos.eq.ra;meta.main_DEPositions from Name (declination part)degpos.eq.dec;meta.main