Virial factor of SDSS DR5 QSOs J/ApJ/928/60 ivo://CDS.VizieR/J/ApJ/928/60 doi:10.26093/cds/vizier.19280060 CDS Liu H.T. Feng H.-C. Li S.-S. Bai J.M. 2024-11-06T20:24:30Z 2024-02-27T10:34:23Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars black-holes visible-astronomy spectroscopy redshifted galaxy-kinematics Under the hypothesis of gravitational redshift induced by a central supermassive black hole, and based on line widths and shifts of redward-shifted H{beta} and FeII broad emission lines for a sample of 1973 z<0.8 Sloan Digital Sky Survey DR5 quasars, we measured the virial factor in determining supermassive black hole masses, usually estimated by the reverberation mapping method or the relevant secondary methods. The virial factor had been believed to be from the geometric effect of the broad-line region. The measured virial factor of FeII is larger than that of H{beta} for 98% of these quasars. The virial factor is very different from object to object and for different emission lines. For most of these quasars, the virial factor of H{beta} is larger than these averages that were usually used in determining the masses of black holes. There are three positive correlations among the measured virial factor of H{beta}, dimensionless accretion rate, and FeII/H{beta} line ratio. A positive three-dimensional correlation is found among these three quantities, and this correlation indicates that the virial factor is likely dominated by the dimensionless accretion rate and metallicity. A negative correlation is found between the redward shift of H{beta} and the scaled size of the broad-line region radius in units of the gravitational radius of the black hole. This negative correlation will be expected naturally if the redward shift of H{beta} is mainly from the gravity of the black hole. Radiation pressure from the accretion disk may be a significant contributor to the virial factor. 2022ApJ...928...60L https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/928/60 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to VII/252 : SDSS-DR5 quasar catalog (Schneider+, 2007) VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020) J/ApJ/613/682 : AGN masses and broad-line region sizes (Peterson+, 2004) J/ApJ/632/799 : NGC4395 light curves (Peterson+, 2005) J/ApJ/687/78 : FeII emission in quasars (Hu+, 2008) J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010) J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335 & IRAS F12397+3333 (Du+, 2014) J/ApJ/795/38 : Phot./sp. measurements for KA1858+4850 (Pei+, 2014) J/ApJ/793/108 : SEAMBHs. II. Continuum and Hbeta LCs (Wang+, 2014) J/ApJS/217/26 : Lick AGN monitoring 2011: light curves (Barth+, 2015) J/ApJ/806/22 : SEAMBHs IV. H{beta} time lags (Du+, 2015) J/ApJS/216/4 : SDSS-RM project: technical overview (Shen+, 2015) J/ApJ/805/96 : SDSS-RM project: velocity dispersions of QSOs (Shen+, 2015) J/ApJ/827/118 : A new reverberation mapping campaign on NGC 5548 (Lu+, 2016) J/ApJ/818/30 : Lag measurements for z<0.8 QSOs from SDSS-RM (Shen+, 2016) J/ApJ/851/21 : SDSS RM project first year of observations (Grier+, 2017) J/ApJ/837/131 : Space telescope RM project. V. NGC5548 (Pei+, 2017) J/ApJ/869/142 : Monitoring AGNs with H{beta} Asymmetry (MAHA) I. (Du+, 2018) J/ApJ/856/6 : SEAMBHs IX. 10 new H{beta} light curves (Du+, 2018) J/ApJ/886/42 : Reverberation mapping & opt. spectra of AGNs (Du+, 2019) J/ApJS/243/21 : Broad-line AGN from SDSS-DR7 (Liu+, 2019) J/ApJS/241/34 : SDSS Reverberation Mapping (SDSS-RM) project (Shen+, 2019) J/ApJ/876/49 : 10yr reverberation mapping campaign for 3C273 (Zhang+, 2019) J/ApJ/905/75 : 3yrs spectroscopic light curves of PG0026+129 (Hu+, 2020) J/MNRAS/491/5881 : Extended size-luminosity relation for RM AGNs (Yu+, 2020) J/ApJ/909/18 : Reverberation mapping monitoring of NGC3516 (Feng+, 2021) J/ApJ/912/92 : Lijiang/YFOSC light curves of NGC 2617 (Feng+, 2021) J/ApJ/918/50 : Reverberation mapping for Mrk 817 and NGC 7469 (Lu+, 2021) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/928/60 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/928/60 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/928/60 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/928/60 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/928/60 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/928/60 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJ/928/60/table1 (The relevant parameters for 1973 quasars in SDSS DR5) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/928/60/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/928/60/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/928/60/table1? 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36816 36863 45052-45054 49009 49013-49014 49087 49091 49095 49098 49100 49106 49124 49130 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/928/60?format=ascii Optical default J/ApJ/928/60/table1 The relevant parameters for 1973 quasars in SDSS DR5 Simbad Simbad column added by the CDS meta.ref.url char NED NED column added by the CDS meta.ref.url char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS SDSS DR5 object designation (HHMMSS.ss+DDMMSS.s; J2000) meta.id;meta.main char z [0.078/0.81] Spectroscopic redshift (1) src.redshift float VHb [704/11428] H{beta} broad line Full-Width at Half-Maximum (1) km/s spect.line.width float e_VHb [15/899] Uncertainty in VHb km/s stat.error;spect.line.width float sigmaHb [591/5057] H{beta} broad line velocity dispersion (1) km/s phys.veloc.dispersion;em.line float DelVHb [19/3336] Redward velocity shift of H{beta} (1) km/s phys.veloc;phys.atmol.lineShift float e_DelVHb [8/432] Uncertainty in DelVHb km/s stat.error;phys.veloc;phys.atmol.lineShift float VFe2 [922/9227] FeII broad line Full-Width at Half-Maximum (1) km/s spect.line.width float e_VFe2 [18/2657] Uncertainty in VFe2 km/s stat.error;spect.line.width float DelVFe2 [24/2969] Redward velocity shift of FeII (1) km/s phys.veloc;phys.atmol.lineShift float e_DelVFe2 [9/656] Uncertainty in DelVFe2 km/s stat.error;phys.veloc;phys.atmol.lineShift float logL [43.75/46.17] Log luminosity at 5100{AA}; erg/s (1) log(1e-07W) phys.luminosity float MBH [0.9/573] Black hole mass (1) 1e+07solMass phys.mass float Lb/LE [0.016/1.21] Ratio of bolometric to Eddington luminosities (1) phys.luminosity;arith.ratio float RFe [0.16/4.4] FeII/H{beta} line ratio (1) spect.line.intensity;arith.ratio float f(Hb) [0.3/94] Virial factor from VHb arith.factor;phys.virial float e_f(Hb) [0.2/32] Uncertainty in f (Hb) stat.error;arith.factor;phys.virial float f(sigHb) [1/148.1] Virial factor from sigmaHb arith.factor;phys.virial float e_f(sigHb) [0.5/42] Uncertainty in f (sigmaHb) stat.error;arith.factor;phys.virial float f(Fe2) [1/222] Virial factor from VFe2 arith.factor;phys.virial float e_f(Fe2) [0.7/340000000] Uncertainty in f (Fe2) stat.error;arith.factor;phys.virial double logMdot [-0.4/1.5] Log dimensionless accretion rate phys.mass;arith.rate float Ratio [633/46406] Broad-line region radius (2) phys.size.radius;em.line;arith.diff float H08 Display data from Hu+ 2008, J/ApJ/687/78 meta.ref.url char Sloan Display the online SDSS-DR17 data for the nearest object meta.ref.url char _RA Right Ascension (J2000) from SIMBAD (not part of the original data) deg pos.eq.ra;meta.main _DE Declination (J2000) from SIMBAD (not part of the original data) deg pos.eq.dec;meta.main