J/MNRAS/477/830ivo://CDS.VizieR/J/MNRAS/477/830doi:10.26093/cds/vizier.74770830CDSHwang H.-C.Zakamska N.L.Alexandroff R.M.Hamann F.Greene J.E.,Perrotta S.Richards G.T.2024-08-18T20:19:29Z2021-06-25T16:06:38ZCDS support team

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

cds-question@unistra.frquasarsradio-sourcesMost active galactic nuclei (AGNs) are radio quiet, and the origin of their radio emission is not well understood. One hypothesis is that this radio emission is a byproduct of quasar-driven winds. In this paper, we present the radio properties of 108 extremely red quasars (ERQs) at z=2-4. ERQs are among the most luminous quasars (L_bol_~10^47-48^erg/s^) in the Universe, with signatures of extreme (>>1000km/s) outflows in their [OIII]{lambda}5007{AA} emission, making them the best subjects to seek the connection between radio and outflow activities. All ERQs but one are unresolved in the radio on ~10kpc scales, and the median radio luminosity of ERQs is {nu}L_{nu}_[6GHz]= 10^41.0^erg/s, in the radio-quiet regime, but 1-2 orders of magnitude higher than that of other quasar samples. The radio spectra are steep, with a mean spectral index <{alpha}>=-1.0. In addition, ERQs neatly follow the extrapolation of the low-redshift correlation between radio luminosity and the velocity dispersion of [OIII]-emitting ionized gas. Uncollimated winds, with a power of one per cent of the bolometric luminosity, can account for all these observations. Such winds would interact with and shock the gas around the quasar and in the host galaxy, resulting in acceleration of relativistic particles and the consequent synchrotron emission observed in the radio. Our observations support the picture in which ERQs are signposts of extremely powerful episodes of quasar feedback, and quasar-driven winds as a contributor of the radio emission in the intermediate regime of radio luminosity {nu}L_{nu}_=10^39^-10^42^erg/s.2018MNRAS.477..830Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/477/830CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/279 : SDSS quasar catalog: twelfth data release (Paris+, 2017)J/MNRAS/464/3431 : Extremely red quasars in BOSS (Hamann+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/477/830https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/477/830http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/477/830https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/477/830https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/477/830http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/477/830GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/477/830/table4 (Radio flux densities and luminosities of extremely red quasars (ERQs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/477/830/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/477/830/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/477/830/table4?GETtext/xml+votable180.050000true1.544491112.25035390.0055555555555555566/2163 2306 4189 4347 4639 4716 4877 4883 4942 5130 5181 5352 5578 5592 5601 5858 5914 6006 6012 6139 6425 6603 6628 7202 7293 7324 7440 7472 7481 7490 8286 8450 8499 8629 8746 8779 8788 8899 8969 8973 8993 9621 9729 9917 10030 10287 10351 10399 10422 10681 11119 11137 11217 11335 11434 11466 11523 11566 11813 11912 17631 17860 17938 17975 18786 18902 19026 19253 19385 19451 19587 19653 19655 19770 19946 19955 20157 20255 21881 25949 26299 26438 26467 26510 26559 26580 27033 27067 27183 27610 27721 27731 27921 28015 28223 28309 28352 28501 31479 325064.108163007208719e-24 4.108163007208719e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/477/830?format=asciiRadiodefaultJ/MNRAS/477/830/table4Radio flux densities and luminosities of extremely red quasars (ERQs)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS name (SDSS JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharTypeERQ type (1)src.classcharzEmission-line redshift from DR12Qsrc.redshiftfloatl_F6.2GHzLimit flag on F6.2GHzmeta.code.errorcharF6.2GHzFlux density observed at 6.2GHzuJyphot.flux.density;em.radio.6-12GHzinte_F6.2GHz? rms uncertainty on flux density (2)uJystat.errorintnullablel_LradioLimit flag on Lradiometa.code.errorcharLradioRadio luminosity at rest-frame 6GHz1e-07Wphys.luminosity;em.radiodoubleSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main