J/ApJ/966/5ivo://CDS.VizieR/J/ApJ/966/5CDSMa Q.Wen Y.Wu X.-B.Gu H.Fu Y.2026-09-10T08:16:19Z2026-09-10T08:45:58ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiphotometryvisible-astronomyIn our previous work on broadband photometric reverberation mapping (PRM), we proposed the interpolated cross-correlation function (ICCF)-Cut process to obtain the time lags of the H{alpha} emission line from two broadband lightcurves via subtracting the continuum emission from the line band. Extending the work, we enlarge our sample to the Zwicky Transient Facility (ZTF) database. We adopt two criteria to select 123 type 1 active galactic nuclei (AGNs) with sufficient variability and smooth light curves from 3537 AGNs at z<0.09 with more than 100 epoch observations in the g and r bands from the ZTF database. We calculate the H{alpha} time lags for 23 of them that have previous spectroscopic reverberation mapping (SRM) results using the ICCF-Cut, Just Another Vehicle for Estimating Lags In Nuclei (JAVELIN), and {chi}2 methods. Our obtained H{alpha} time lags are slightly larger than the H{beta} time lags, which is consistent with the previous SRM results and the theoretical model of the AGN broad-line region. The comparisons between the SRM and PRM lag distributions and between the subtracted emission line light curves indicate that after selecting AGNs with the two criteria, combining the ICCF-Cut, JAVELIN, and {chi}2 methods provides an efficient way to get the reliable H{alpha} lags from the broadband PRM. Such techniques can be used to estimate the black hole masses of a large sample of AGNs in large multiepoch photometric sky surveys such as the Legacy Survey of Space and Time and the survey from the Wide Field Survey Telescope in the near future.2024ApJ...966....5Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/966/5CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/162 : LAMOST DR11 catalogs (Luo+, 2026)J/ApJ/698/895 : Variations in QSOs optical flux (Kelly+, 2009)J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010)J/ApJ/756/73 : gri LCs of the low-luminosity AGN NGC 4395 (Edri+, 2012)J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)J/ApJ/851/21 : SDSS RM project first year of observations (Grier+, 2017)J/ApJ/850/74 : Swift/BAT AGN Spectroscopic Survey. I. (Koss+, 2017)J/ApJ/869/142 : Monitoring AGNs with H{beta} Asymmetry (MAHA). I. (Du+, 2018)J/A+A/620/A137 : CCD B,V,R,I,Ha photometry of 3C120 (Ramolla+, 2018)J/ApJ/886/42 : Reverberation mapping & opt. spectra data of AGNs (Du+, 2019)J/ApJS/253/20 : SEAMBHs XII. Reberberation mapping for 15 PG QSOs (Hu+, 2021)J/ApJ/918/50 : Reverberation mapping for Mrk 817 and NGC 7469 (Lu+, 2021)J/ApJS/262/14 : AGNs with H{beta} asymmetry. III. 15 PG quasars (Bao+, 2022)J/ApJ/940/20 : z<0.8 AGNs from MQC with robust lags from ZTF (Guo+, 2022)J/ApJS/263/10 : 2015, 2018-2021 sp. monitoring of NGC 5548 (Lu+, 2022)J/ApJ/925/52 : LAMP 2016: velocity-resolved Hb lags in Seyfert (U+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/966/5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/966/5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/966/5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/966/5https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/966/5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/966/5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/966/5/table1 (List of 23 selected AGNs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/966/5/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/966/5/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/966/5/table1?GETtext/xml+votable180.050000true71.119898612.35325580.0055555555555555566/1405 5091 6977 7246 7921 8299 8922 9194 9750 11354 11388 11490 12380 13202 19567 19883 23418 24120 25965 27862 28060 36775 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/966/5?format=asciiOpticaldefaultJ/ApJ/966/5/table1List of 23 selected AGNsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameAGN namemeta.id;meta.maincharz[0.016/0.09] Redshiftsrc.redshiftfloatJ[1.16/4.7] J indexsrc.var.indexfloats[3.5/73.4] Smoothness of the light curve100000s**-2src.var.indexfloatJ/s[4822/50126] Ratio of J to ssrc.var.index;arith.ratiointFileFilter indication for the light curve file; column added by CDSmeta.code;instr.filtercharLCInteractive LC plotmeta.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.main