J/ApJ/862/123ivo://CDS.VizieR/J/ApJ/862/123doi:10.26093/cds/vizier.18620123CDSMudd D.Martini P.Zu Y.Kochanek C.Peterson B.M.Kessler R.,Davis T.M.Hoormann J.K.King A.Lidman C.Sommer N.E.Tucker B.E.,Asorey J.Hinton S.Glazebrook K.Kuehn K.Lewis G.,Macaulay E.Moeller A.O'Neill C.Zhang B.Abbott T.M.C.,Abdalla F.B.Allam S.Banerji M.Benoit-Levy A.Bertin E.Brooks D.,Rosell A.C.Carollo D.Kind M.C.Carretero J.Cunha C.E.D'Andrea C.B.,da Costa L.N.Davis C.Desai S.Doel P.Fosalba P.,Garcia-Bellido J.Gaztanaga E.Gerdes D.W.Gruen D.Gruendl R.A.,Gschwend J.Gutierrez G.Hartley W.G.Honscheid K.James D.J.,Kuhlmann S.Kuropatkin N.Lima M.Maia M.A.G.Marshall J.L.,McMahon R.G.Menanteau F.Miquel R.Plazas A.A.Romer A.K.,Sanchez E.Schindler R.Schubnell M.Smith M.Smith R.C.,Soares-Santos M.Sobreira F.Suchyta E.Swanson M.E.C.Tarle G.,Thomas D.Tucker D.L.Walker A.R.2019-11-27T12:17:29Z2019-08-22T14:50:55ZCDS support team

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

cds-question@unistra.frquasarsinfrared-photometryvisible-astronomybroad-band-photometryredshiftedWe present accretion disk size measurements for 15 luminous quasars at 0.7<=z<=1.9 derived from griz light curves from the Dark Energy Survey. We measure the disk sizes with continuum reverberation mapping using two methods, both of which are derived from the expectation that accretion disks have a radial temperature gradient and the continuum emission at a given radius is well described by a single blackbody. In the first method we measure the relative lags between the multiband light curves, which provides the relative time lag between shorter and longer wavelength variations. From this, we are only able to constrain upper limits on disk sizes, as many are consistent with no lag the 2{sigma} level. The second method fits the model parameters for the canonical thin disk directly rather than solving for the individual time lags between the light curves. Our measurements demonstrate good agreement with the sizes predicted by this model for accretion rates between 0.3 and 1 times the Eddington rate. Given our large uncertainties, our measurements are also consistent with disk size measurements from gravitational microlensing studies of strongly lensed quasars, as well as other photometric reverberation mapping results, that find disk sizes that are a factor of a few (~3) larger than predictions.2018ApJ...862..123Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/862/123CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/613/682 : AGN masses & broad-line region sizes (Peterson+, 2004)J/ApJ/622/129 : Lag-luminosity relationship in AGN (Sergeev+, 2005)J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)J/ApJ/806/128 : Space telescope RM project. I. NGC5548 (De Rosa+, 2015)J/ApJ/806/129 : Space telescope RM project. II. Swift data (Edelson+, 2015)J/ApJ/821/56 : Space telescope RM proj. III. NGC5548 LCs (Fausnaugh+, 2016)J/MNRAS/472/273 : OzDES DR1 (Childress+, 2017)J/ApJ/836/186 : Continuum-band lags in SDSS QSOs from PS1 obs. (Jiang+, 2017)J/ApJ/837/131 : Space telescope RM proj. V. NGC 5548 sp. (Pei+, 2017)J/AJ/153/107 : Australian Dark Energy Survey (OzDES) QSO cat. (Tie+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/862/123https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/862/123http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/862/123https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/862/123https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/862/123http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/862/123GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/862/123/table1 (description)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/862/123/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/862/123/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/862/123/table1?GETtext/xml+votable180.050000true43.328170.070610.0055555555555555566/17669 17671 17679 17689 17691 17712 17741 17746 17747 17750 17756 36129https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/862/123?format=asciiOpticalInfrareddefaultJ/ApJ/862/123/table1descriptionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNpNumber of measurements for this quasar (link to Table 2)meta.numberintnullableDESQuasar name (JHHMMSS.ss+DDMMSS.ss)meta.id;meta.maincharprimaryRAJ2000[33.7/54.4] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-26.5/0.2] Declination (J2000)degpos.eq.dec;meta.mainz[0.6/1.9] Redshift from Childress+ 2017, J/MNRAS/472/273src.redshiftfloatFieldSN field (1)meta.id;obs.fieldcharMBH[0.04/1.2] BH mass (2)1e+09solMassphys.massfloatLCInteractive Plotmeta.ref.urlcharJ/ApJ/862/123/table2DES quasar light curvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDESQuasar name (JHHMMSS.ss+DDMMSS.ss)meta.id;meta.maincharMJD[56534.2/57428.1] Modified Julian Datedtime.epochdoublemag[18.8/21.3] Apparent AB magnitude in Bandmagphot.magdoublee_mag[0.002/0.4] Uncertainty in magmagstat.error;phot.magdoubleBandObservational passband (griz)instr.bandpasschar