J/ApJS/253/20ivo://CDS.VizieR/J/ApJS/253/20doi:10.26093/cds/vizier.22530020CDSHu C.Li S.-S.Yang S.Yang Z.-X.Guo W.-J.Bao D.-W.Jiang B.-W.,Du P.Li Y.-R.Xiao M.Songsheng Y.-Y.Yu Z.Bai J.-M.Ho L.C.,Brotherton M.S.Aceituno J.Winkler H.Wang J.-M.(The SEAMBH collaboration)2026-05-12T20:05:59Z2021-05-26T09:36:15ZCDS support team

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

cds-question@unistra.frseyfert-galaxiesactive-galactic-nucleiblack-holesvisible-astronomyspectroscopyredshiftedbroad-band-photometryquasarsIn this work, we present the first results of the long-term high-cadence spectroscopic monitoring of 15 PG quasars with relatively strong FeII emission, as a part of a broader reverberation mapping campaign performed using the Calar Alto Observatory's 2.2m telescope. The V-band, 5100{AA} continuum, and H{beta} broad emission line light curves are measured for a set of quasars for periods ranging from dozens to more than a hundred epochs between 2017 May and 2020 July. Accurate time lags between the variations of the H{beta} broad-line fluxes and the optical continuum strength are obtained for all 15 quasars, ranging from 17.0_-3.2_^+2.5^ to 95.9_-23.9_^+7.1^ days in the rest frame. The virial masses of the central supermassive black holes are derived for all 15 quasars, ranging between 0.50_-0.19_^+0.18^ and 19.17_-2.73_^+2.98^ in units of 10^7^M_{sun}_. For 11 of the objects in our sample, this is the first reverberation analysis to be published. Of the rest, two objects have been the subject of previous reverberation studies, but we determine time lags for these that are only half as long as those found in the earlier investigations, which had only been able to sample much more sparsely. The remaining two objects have previously been monitored with high sampling rates. Our results here are consistent with the earlier findings, in the sense that the time lag and the line width vary inversely, consistent with virialization.2021ApJS..253...20Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/253/20CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/269/352 : Quasar evolution (Schmidt+, 1983)J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/ApJ/687/78 : FeII emission in quasars (Hu+, 2008)J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)J/ApJ/782/45 : SEAMBHs. I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)J/ApJ/793/108 : SEAMBHs. II. Continuum and Hbeta LCs (Wang+, 2014)J/ApJ/806/22 : SEAMBHs IV. H{beta} time lags (Du+, 2015)J/ApJ/827/118 : A new reverberation mapping campaign on NGC 5548 (Lu+, 2016)J/ApJ/840/97 : Opt. reverberation mapping for 5 AGNs (Fausnaugh+, 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 data of AGNs (Du+, 2019)J/ApJ/886/93 : SAMP. III. Opt. LCs and spectra of two AGNs (Rakshit+, 2019)J/ApJ/876/49 : A 10yr reverberation mapping campaign for 3C273 (Zhang+, 2019)J/ApJ/877/23 : SEAMBHs. X. RM campaign compilation (Lu+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/253/20https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/253/20http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/253/20https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/253/20https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/253/20http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/253/20GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/253/20/table1 (Objects and observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/253/20/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/253/20/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/253/20/table1?GETtext/xml+votable180.050000true1.581333320.20291670.0055555555555555566/5437 7998 8071 8528 8636 8906 8941 9018 9194 10162 10694 11354 11924 19883 31650https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/253/20?format=asciiOpticaldefaultJ/ApJS/253/20/table1Objects and observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPGPG designation of the object (HHMM+DDd; B1950)meta.id;meta.maincharprimaryONameOther namemeta.idcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainz[0.025/0.17] Redshift from the narrow [OIII] lines in our spectrasrc.redshiftfloatAv[0.016/0.12] Galactic extinction in the V-band from Schlafly & Finkbeiner (2011ApJ...737..103S)magphys.absorption.galfloatNobs[34/149] Number of observation epochsmeta.numberintNpNumber of flux measurements for this AGN (link to Table2)meta.numberintnullableTmed[3/9] Median time between spectradtime.intervalintJD1[7882/8693] Starting Julian Date of observation; JD-245000dtime.epochintJD2[8057/9043] Ending Julian Date of observation; JD-245000dtime.epochintLCvV-band LC interactive plotmeta.ref.urlchar51005100AA LC interactive plotmeta.ref.urlcharHbHbeta LC interactive plotmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharJ/ApJS/253/20/table2Light curvese_Flux[1.4e-18/0.09] Uncertainty in Fluxstat.error;phot.fluxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPGPG designation of the object (HHMM+DDd; B1950)meta.id;meta.maincharx_FluxName of the flux measurement (1)meta.unit;phot.fluxcharJD[2457882.5/2459043.7] Julian Date of observationdtime.epochdoubleFlux[6.2e-16/3.8] Fluxphot.flux.densitydouble