J/ApJ/812/66ivo://CDS.VizieR/J/ApJ/812/66doi:10.26093/cds/vizier.18120066CDSKim D.Im M.Glikman E.Woo J.-H.Urrutia T.2017-09-29T09:03:11Z2016-02-23T15:51:46ZCDS support team

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

cds-question@unistra.frquasarsinfrared-astronomyspectroscopyredshiftedRed quasars are thought to be an intermediate population between merger-driven star-forming galaxies in dust-enshrouded phase and normal quasars. If so, they are expected to have high accretion ratios, but their intrinsic dust extinction hampers reliable determination of Eddington ratios. Here, we compare the accretion rates of 16 red quasars at z~0.7 to those of normal type 1 quasars at the same redshift range. The red quasars are selected by their red colors in optical through near-infrared (NIR) and radio detection. The accretion rates of the red quasars are derived from the P{beta} line in NIR spectra, which is obtained by the SpeX on the Infrared Telescope Facility in order to avoid the effects of dust extinction. We find that the measured Eddington ratios (L_bol_/L_Edd_~=0.69) of red quasars are significantly higher than those of normal type 1 quasars, which is consistent with a scenario in which red quasars are the intermediate population and the black holes of red quasars grow very rapidly during such a stage.2015ApJ...812...66Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/812/66CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/270 : SDSS quasar catalog: tenth data release (Paris+, 2014)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)VII/248 : Quasars and Active Galactic Nuclei (12th Ed.) (Veron+ 2006)VII/241 : The 2dF QSO Redshift Survey (Croom+ 2004)J/ApJS/217/5 : HAQ survey: red QSO candidates follow-up (Krogager+, 2015)J/ApJ/806/109 : Rest-frame optical spectra of 3<z<6 QSOs (Jun+, 2015)J/ApJ/804/34 : Luminous AGNs and early-type SDSS galaxies (Hong+, 2015)J/ApJS/216/17 : AKARI 2.5-5um spectra of nearby Type-1 AGNs (Kim+, 2015)J/ApJ/778/127 : UKIDSS+FIRST+SDSS red QSOs candidates (Glikman+, 2013)J/ApJS/208/24 : Spitzer MIR AGN survey. I. (Lacy+, 2013)J/ApJ/772/26 : AGN with WISE. II. The NDWFS Bootes field (Assef+, 2013)J/ApJ/757/51 : FIRST-2MASS dust-reddened QSO spectra (Glikman+, 2012)J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)J/ApJ/716/348 : The XMM-Newton survey of the COSMOS field (Brusa+, 2010)J/ApJS/183/17 : The SDSS DR5/XMM-Newton quasar survey (Young+, 2009)J/ApJ/698/1095 : The FIRST-2MASS red QSO survey. II. (Urrutia+, 2009)J/ApJS/175/116 : SNU bright quasar survey (SNUQSO) (Lee+, 2008)J/ApJ/667/673 : FIRST-2MASS red quasar survey (Glikman+, 2007)J/AJ/133/186 : Optical spectroscopy of 77 luminous AGNs & QSOs (Lacy+, 2007)J/ApJ/640/579 : Near-infrared spectra of 27 SDSS quasars (Glikman+, 2006)J/AJ/126/2209 : X-ray AGN from RASS and SDSS (Anderson+, 2003)J/ApJS/135/227 : The FIRST bright quasar survey. III. (Becker+, 2001)J/AJ/119/2540 : Asiago-ESO/RASS QSO survey. I. (Grazian+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/812/66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/812/66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/812/66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/812/66https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/812/66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/812/66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/812/66/table1 (List of 16 red quasars at z~0.7)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/812/66/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/812/66/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/812/66/table1?GETtext/xml+votable180.050000true126.258579247.28110830.0055555555555555566/4886 6609 8357 8675 9606 9750 9964 10221 10997 11221 17314 17328 26331 26603 27311 281727.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/812/66?format=asciiInfraredOpticaldefaultJ/ApJ/812/66/table1List of 16 red quasars at z~0.7recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintF2MSQuasar identifier (HHMM+DDMM; J2000)meta.id;meta.maincharz[0.5/0.9] Redshiftsrc.redshiftfloatE(B-V)[0.2/1.5] B-V color excessmagphot.color.excessfloatKmag[13.6/15.3] K-band magnitudemagphot.mag;em.IR.Kfloatr'-K[4.1/7] r'-K color indexmagphot.color;em.opt;em.IRfloatf_r'-Ka: R-K mags from Glikman et al. (2007, J/ApJ/667/673)meta.codecharJ-K[1.5/3.5] J-K color indexmagphot.color;em.IR.J;em.IR.KfloatNfNumber of flux measurements for QSO with P{beta} emissionmeta.numberintnullableSpInteractive plot of spectrummeta.ref.urlcharSimbadSimbad 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.mainJ/ApJ/812/66/table3Five red quasar spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintF2MSQuasar identifier (HHMM+DDMM; J2000)meta.id;meta.maincharlambda[9381/24243] Wavelength in Angstroms0.1nmem.wlintFlambda? Flux in ergs/s/cm^2^/AngstromcW.m**-2.nm**-1phot.fluxdoublenullablee_Flambda? Error in FluxcW.m**-2.nm**-1stat.errordoublenullable