J/ApJ/788/159ivo://CDS.VizieR/J/ApJ/788/159doi:10.26093/cds/vizier.17880159CDSKoshida S.Minezaki T.Yoshii Y.Kobayashi Y.Sakata Y.Sugawara S.,Enya K.Suganuma M.Tomita H.Aoki T.Peterson B.A.2022-11-21T07:11:30Z2017-08-03T13:48:20ZCDS support team

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

cds-question@unistra.frgalaxiesseyfert-galaxiesredshiftedinfrared-photometryvisible-astronomyphotometryWe present the results of a dust reverberation survey for 17 nearby Seyfert 1 galaxies, which provides the largest homogeneous data collection for the radius of the innermost dust torus. A delayed response of the K-band light curve after the V-band light curve was found for all targets, and 49 measurements of lag times between the flux variation of the dust emission in the K band and that of the optical continuum emission in the V band were obtained by the cross-correlation function analysis and also by an alternative method for estimating the maximum likelihood lag. The lag times strongly correlated with the optical luminosity in the luminosity range of M_V_=-16 to -22 mag, and the regression analysis was performed to obtain the correlation log {Delta}t (days)=-2.11 -0.2 M_V_ assuming {Delta}t{prop.to}L^0.5^, which was theoretically expected. We discuss the possible origins of the intrinsic scatter of the dust lag-luminosity correlation, which was estimated to be approximately 0.13 dex, and we find that the difference of internal extinction and delayed response of changes in lag times to the flux variations could have partly contributed to intrinsic scatter. However, we could not detect any systematic change of the correlation with the subclass of the Seyfert type or the Eddington ratio. Finally, we compare the dust reverberation radius with the near-infrared interferometric radius of the dust torus and the reverberation radius of broad Balmer emission lines. The interferometric radius in the K band was found to be systematically larger than the dust reverberation radius in the same band by the about a factor of two, which could be interpreted by the difference between the flux-weighted radius and response-weighted radius of the innermost dust torus. The reverberation radius of the broad Balmer emission lines was found to be systematically smaller than the dust reverberation radius by about a factor of four to five, which strongly supports the unified scheme of the Seyfert type of active galactic nuclei (AGNs). Moreover, we examined the radius-luminosity correlations for the hard X-ray (14-195 keV) and the [O IV] {lambda}25.89 {mu}m emission-line luminosities, which would be applicable for obscured AGNs.2014ApJ...788..159Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/788/159CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/224 : Quasars and Active Galactic Nuclei (10th Ed.) (Veron+ 2001)VII/258 : Quasars and Active Galactic Nuclei (13th Ed.) (Veron+ 2010)J/ApJS/141/31 : JHK' imaging photometry of Seyfert 1. II. (Enya+, 2002)J/ApJ/613/682 : AGN central masses and broad-line region sizesJ/AJ/143/83 : Properties of a sample of Seyfert 1 galaxies (Xu+, 2012)J/ApJ/755/60 : Reverberation mapping for five Seyfert 1 galaxieshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/788/159https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/788/159http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/788/159https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/788/159https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/788/159http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/788/159GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/788/159/table1 (List of Target Active Galactic Nuclei)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/159/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/159/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/159/table1?GETtext/xml+votable180.050000true1.5812520.2029170.0055555555555555566/1405 4439 6977 7246 7642 8922 10912 10927 11490 17727 19283 19883 22890 23233 26148 28593 49042https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/788/159?format=asciiOpticalInfrareddefaultJ/ApJ/788/159/table1List of Target Active Galactic NucleirecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCLight curvesmeta.ref.urlcharNameTarget AGN namemeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainMajDiamMajor diameter taken from the NEDarcminphys.angSizefloatMinDiamMinor diameter taken from the NEDarcminphys.angSizefloatzRedshiftsrc.redshiftfloatVMagV-band absolute magnitude (1)magphot.magfloatType[1/1.8] Seyfert type of AGNsrc.classfloatRef? [1/2] Type reference (2)meta.refintnullablelogMLog of mass accretion rate: log(M_BH_/M_{sun}_)log(solMass)arith.rate;phys.masschare_logM? Uncertainty in logMlog(solMass)stat.errorfloatnullableRef1? [3/7] logM reference (3)meta.ref;pos.frameintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/788/159/table4Light curve datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget AGN namemeta.id;meta.maincharBand[VK] Observing bandinstr.bandpasscharMJDObservation datedtime.epochdoubleFluxFlux in Band (1)mJyphot.flux.densityfloate_FluxError in FluxmJystat.error;phot.fluxfloat