J/ApJ/793/108ivo://CDS.VizieR/J/ApJ/793/108doi:10.26093/cds/vizier.17930108CDSWang J.-M.Du P.Hu C.Netzer H.Bai J.-M.Lu K.-X.Kaspi S.Qiu J.,Li Y.-R.Wang F.(the SEAMBH collaboration)2026-05-12T20:05:01Z2016-10-11T16:45:53ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiaccretionspectroscopyredshiftedThis is the second in a series of papers reporting on a large reverberation mapping (RM) campaign to measure black hole (BH) mass in high accretion rate active galactic nuclei (AGNs). The goal is to identify super-Eddington accreting massive black holes (SEAMBHs) and to use their unique properties to construct a new method for measuring cosmological distances. Based on theoretical models, the saturated bolometric luminosity of such sources is proportional to the BH mass, which can be used to obtain their distance. Here we report on five new RM measurements and show that in four of the cases, we can measure the BH mass and three of these sources are SEAMBHs. Together with the three sources from our earlier work, we now have six new sources of this type. We use a novel method based on a minimal radiation efficiency to identify nine additional SEAMBHs from earlier RM-based mass measurements. We use a Bayesian analysis to determine the parameters of the new distance expression and the method uncertainties from the observed properties of the objects in the sample. The ratio of the newly measured distances to the standard cosmological ones has a mean scatter of 0.14 dex, indicating that SEAMBHs can be use as cosmological distance probes. With their high luminosity, long period of activity, and large numbers at high redshifts, SEAMBHs have a potential to extend the cosmic distance ladder beyond the range now explored by Type Ia supernovae.2014ApJ...793..108Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/793/108CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/825/126 : SEAMBHs. V. The third year (Du+, 2016)J/ApJ/806/22 : SEAMBHs. IV. H{beta} time lags (Du+, 2015)J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)J/ApJ/764/45 : Luminosity function of broad-line quasars. II. (Kelly+, 2013)J/ApJ/761/143 : Black hole masses of z~1.4 AGNs from SXDS (Nobuta+, 2012)J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/A+A/350/805 : X-ray selected ROSAT AGN spectra (Grupe+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/793/108https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/793/108http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/793/108https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/793/108https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/793/108http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/793/108GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/793/108/table1 (The Lijiang project: targets and observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/793/108/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/793/108/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/793/108/table1?GETtext/xml+votable180.050000true1.5812520.2027780.0055555555555555566/5500 6028 6534 9750 10761 11354 19883 23418 28605 36775https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/793/108?format=asciiOpticaldefaultJ/ApJ/793/108/table1The Lijiang project: targets and observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAGN name (1)meta.id;meta.maincharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainz[0.016/0.09] Redshiftsrc.redshiftfloatDate1Start date of monitoring periodmeta.notecharDate2End date of monitoring periodmeta.notecharNsp[27/123] Number of spectroscopic epochsmeta.numberintSep[80.7/234.4] Angular distance between the object and the comparison star (R*)arcsecpos.angDistancefloatPA[-167/174.5] Position angle from the AGN to the comparison stardegpos.posAngfloatNoteNote on {tau}_BLR_ (2)meta.notecharLCHbInteractive plot of H{beta} light curvesmeta.ref.urlcharLC51Interactive plot of 5100{AA} continuum light curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/793/108/table3Continuum and H{beta} light curvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD-1044? Mrk 1044 Julian Date of observation (JD-2456200)dtime.epochdoublenullableF51-1044[4.3/6.3]? Mrk 1044 flux at (1+z)5100{AA} (2)1e-15cW.m**-2.nm**-1phot.fluxfloatnullablee_F51-1044[0.01/0.3]? Error in F51-1044 (3)1e-15cW.m**-2.nm**-1stat.errorfloatnullableFHb-1044[3.4/4.5]? Mrk 1044 H{beta} integrated flux (4)1e-13mW.m**-2phot.fluxfloatnullablee_FHb-1044[0.01/0.05]? Error in FHb-1044 (3)1e-13mW.m**-2stat.errorfloatnullableJD-V-382Mrk 382 Julian Date of V band observation (JD-2456200)dtime.epochdoubleVmag[-0.08/0.03] Mrk 382 V band instrumental magnitudemagphot.mag;em.opt.Vfloate_Vmag[0.003/0.04] Error in Vmagmagstat.error;phot.mag;em.opt.VfloatJD-382? Mrk 382 Julian Date of observation (JD-2456200)dtime.epochdoublenullableFHb-382[0.2/0.5]? Mrk 382 H{beta} integrated flux (4)1e-13mW.m**-2phot.fluxfloatnullablee_FHb-382[0.004/0.03]? Error in FHb-382 (3)1e-13mW.m**-2stat.errorfloatnullableJD-MCG? MCG+06-26-012 Julian Date of observation (JD-2456200)dtime.epochdoublenullableF51-MCG[0.5/0.9]? MCG+06-26-012 flux at (1+z)5100{AA} (2)1e-15cW.m**-2.nm**-1phot.fluxfloatnullablee_F51-MCG[0.004/0.02]? Error in F51-MCG (3)1e-15cW.m**-2.nm**-1stat.errorfloatnullableFHb-MCG[0.3/0.5]? MCG+06-26-012 H{beta} integrated flux (4)1e-13mW.m**-2phot.fluxfloatnullablee_FHb-MCG[0.004/0.01]? Error in FHb-MCG (3)1e-13mW.m**-2stat.errorfloatnullableJD-486? Mrk 486 Julian Date of observation (JD-2456200)dtime.epochdoublenullableF51-486[3/3.6]? Mrk 486 flux at (1+z)5100{AA} (2)1e-15cW.m**-2.nm**-1phot.fluxfloatnullablee_F51-486[0.006/0.08]? Error in F51-486 (3)1e-15cW.m**-2.nm**-1stat.errorfloatnullableFHb-486[2.8/3.6]? Mrk 486 H{beta} integrated flux (4)1e-13mW.m**-2phot.fluxfloatnullablee_FHb-486[0.009/0.03]? Error in FHb-486 (3)1e-13mW.m**-2stat.errorfloatnullableJD-493? Mrk 493 Julian Date of observation (JD-2456200)dtime.epochdoublenullableF51-493[1.5/2.1]? Mrk 493 flux at (1+z)5100{AA} (2)1e-15cW.m**-2.nm**-1phot.fluxfloatnullablee_F51-493[0.006/0.04]? Error in F51-493 (3)1e-15cW.m**-2.nm**-1stat.errorfloatnullableFHb-493[0.9/1.1]? Mrk 493 H{beta} integrated flux (4)1e-13mW.m**-2phot.fluxfloatnullablee_FHb-493[0.005/0.02]? Error in FHb-493 (3)1e-13mW.m**-2stat.errorfloatnullable