J/ApJS/250/10ivo://CDS.VizieR/J/ApJS/250/10doi:10.26093/cds/vizier.22500010CDSKinemuchi K.Hall P.B.McGreer I.Kochanek C.S.Grier C.J.Trump J.,Shen Y.Brandt W.N.Wood-Vasey W.M.Fan X.Peterson B.M.,Schneider D.P.Hernandez Santisteban J.V.Horne K.Chen Y.,Eftekharzadeh S.Guo Y.Jia S.Li F.Li Z.Nie J.Ponder K.A.,Rogerson J.Zhang T.Zou HuJiang L.Ho L.C.Kneib J.-P.Petitjean P.,Palanque-Delabrouille N.Yeche C.2021-09-17T07:15:23Z2020-11-27T05:32:15ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleivisible-astronomysloan-photometrysurveysThe Sloan Digital Sky Survey (SDSS) Reverberation Mapping program monitors 849 active galactic nuclei (AGNs) both spectroscopically and photometrically. The photometric observations used in this work span over 4yr and provide an excellent baseline for variability studies of these objects. We present the photometric light curves from 2014 to 2017 obtained by the Steward Observatory's Bok telescope and the Canada-France-Hawaii telescope with MegaCam. We provide details on the data acquisition and processing of the data from each telescope, the difference imaging photometry used to produce the light curves, and the calculation of a variability index to quantify each AGN's variability. We find that the Welch-Stetson J index provides a useful characterization of AGN variability and can be used to select AGNs for further study.2020ApJS..250...10Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/250/10CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/ApJ/777/168 : CIV & SiIV broad absorption line troughs in SDSS (Filiz+, 2013)J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)J/ApJ/811/91 : SDSS-RM project: z<1 QSO host galaxies (Matsuoka+, 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/821/56 : Space telescope RM project. III. NGC 5548 (Fausnaugh+, 2016)J/ApJ/831/7 : SDSS-RM project: peak velocities of QSOs (Shen+, 2016)J/ApJ/818/30 : Lag measurements for 15 z<0.8 QSOs from SDSS-RM (Shen+, 2016)J/ApJ/851/21 : SDSS RM project first year of observations (Grier+, 2017)J/ApJ/854/107 : Light curves of 2 Seyfert 1 galaxies (Fausnaugh+, 2018)J/ApJ/872/21 : SDSS RM project: <10day CIV BAL variability (Hemler+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/250/10https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/250/10http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/250/10https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/250/10https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/250/10http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/250/10GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/250/10/table4 (SDSS-RM objects with the Welch-Stetson variability index in SDSS g and i-band)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/250/10/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/250/10/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/250/10/table4?GETtext/xml+votable180.050000true213.6979061153.065586110.0055555555555555565/2856 6/10741 10743 10749 11402-11403 11406 11428 11430 11432-11433 114362.381800341673347e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/250/10?format=asciiOpticaldefaultJ/ApJS/250/10/table4SDSS-RM objects with the Welch-Stetson variability index in SDSS g and i-bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0/1213] Reverberation Mapping identifiermeta.id;meta.mainintRAJ2000[211.28/216.17] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[51.62/54.57] Declination (J2000)degpos.eq.dec;meta.mainz[0.08/4.43]? Redshiftsrc.redshiftfloatnullablegmag[16.8/25.2]? SDSS g band apparent (AB) magnitudemagphot.mag;em.opt.Bfloatnullableimag[16.4/24.1]? SDSS i band apparent (AB) magnitudemagphot.mag;em.opt.IfloatnullableBokgVar[0.73/2345.1]? Bok g band variability indexmeta.code;src.var.indexdoublenullableBokiVar[-0.55/13308]? Bok i band variability indexmeta.code;src.var.indexdoublenullableCFHTgVar[-0.07/57.7]? CFHT g band variability indexmeta.code;src.var.indexfloatnullableCFHTiVar[-1.75/1362]? CFHT i band variability indexmeta.code;src.var.indexdoublenullableSDSSDisplay data from SDSS photometric catalog DR7 (II/294) and DR12 (V/147) within 1"meta.ref.urlcharSloanDisplay the online SDSS DR14 data for the nearest objectmeta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharNEDNED column added by the CDSmeta.ref.urlcharJ/ApJS/250/10/table1Log of CFHT observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSetSemestermeta.idcharMJD[56648/57964] Modified Julian Datedtime.epochintDateUT date of observationtime.epoch;obsnullableFilt[g,i ] Filter(s)meta.id;instr.filtercharSeeing[0.4/3.1] Average seeingarcsecinstr.obsty.seeing;stat.meanfloatWeatherWeather conditionsmeta.notecharCommCommentmeta.notecharJ/ApJS/250/10/table3Log of Bok observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSetSemestermeta.idcharMJD[56648/57964] Modified Julian Datedtime.epochintDateUT date of observationtime.epoch;obsnullableFilt[g,i ] Filter(s)meta.id;instr.filtercharSeeing[0.4/3.1] Average seeingarcsecinstr.obsty.seeing;stat.meanfloatWeatherWeather conditionsmeta.notecharCommCommentmeta.notechar