J/ApJ/905/7ivo://CDS.VizieR/J/ApJ/905/7doi:10.26093/cds/vizier.19050007CDSCornachione M.A.Morgan C.W.Burger H.R.Shalyapin V.N.,Goicoechea L.J.Vrba F.J.Dahm S.E.Tilleman T.M.2022-09-05T14:19:14Z2022-06-13T13:17:46ZCDS support team

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

cds-question@unistra.frquasarsgravitational-lensingphotometryvisible-astronomyWe present a microlensing analysis of updated light curves in three filters, the g-band, r-band, and H-band, for the gravitationally lensed quasars Q0957+561 and SBS0909+532. Both systems display prominent microlensing features which we analyze using our Bayesian Monte Carlo technique to constrain the quasar continuum emission region sizes in each band. We report sizes as half-light radii scaled to a 60{deg} inclination angle. For Q0957+561 we measure log(r_1/2_/cm)=16.54_-0.33_^+0.33^, 16.66_-0.62_^+0.37^, and 17.37_-0.40_^+0.49^ in g-, r-, and H-band, respectively. For SBS0909+532 we measure log(r_1/2_/cm)=15.83_-0.33_^+0.33^, 16.21_-0.62_^+0.37^, and 17.90_-0.63_^+0.61^ in the g-, r-, and H-band respectively. With size measurements in three bands spanning the quasar rest frame ultraviolet to optical, we can place constraints on the scaling of accretion disk size with wavelength, r{propto}{lambda}^1/{beta}^. In a joint analysis of both systems we find a slope shallower than that predicted by thin disk theory, {beta}=0.35_-0.08_^+0.16^, consistent with other constraints from multi-epoch microlensing studies.2020ApJ...905....7Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/905/7CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/ApJ/640/579 : Near-infrared spectra of 27 SDSS quasars (Glikman+, 2006)J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010)J/A+A/540/A132 : Optical follow-up of Q0957+561 in 2005-2010 (Shalyapin+, 2012)J/ApJ/806/129 : Space telescope RM project. II. Swift data (Edelson+, 2015)J/ApJ/806/258 : Optical LCs of QSO J0924+0219 lensed quasar (MacLeod+, 2015)J/ApJ/817/55 : NIR spectroscopy of 1.5<z<3.5 broad-band QSOs (Shen, 2016)J/MNRAS/465/4914 : R-band light curves of HE 0435-1223 (Bonvin+, 2017)J/A+A/616/A118 : Lensed QSOs LCs & spectral monitoring (Gil-Merino+ 2018)J/ApJ/869/106 : SMARTS & Euler R-band obs. of WFI J2033-4723 (Morgan+, 2018)J/ApJ/870/123 : Swift optical & UV flux of four AGNs (Edelson+, 2019)J/A+A/637/A89 : QSO 2237+0305 photometry and light curves (Goicoechea+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/905/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/905/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/905/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/905/7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/905/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/905/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/905/7/q0957Combined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[117/8900] Heliocentric Julian Date, HJD-2450000dtime.epochdoubleAmag[2.19/3.2] Apparent image A magnitude in Filtmagphot.magfloate_Amag[0.001/0.04] Uncertainty in Amagmagstat.error;phot.magfloatBmag[2.26/3.8] Apparent image B magnitude in Filtmagphot.magfloate_Bmag[0.001/0.04] Uncertainty in Bmagmagstat.error;phot.magfloatObsObservatory (not for Tables 2 and 4) (1)meta.id;instr.obstycharFiltr-band (from Teide Observatory, LRT, and USNO) or g-band from LRT (Table 2)meta.code;instr.filtercharJ/ApJ/905/7/sbs0909Combined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[117/8900] Heliocentric Julian Date, HJD-2450000dtime.epochdoubleAmag[2.19/3.2] Apparent image A magnitude in Filtmagphot.magfloate_Amag[0.001/0.04] Uncertainty in Amagmagstat.error;phot.magfloatBmag[2.26/3.8] Apparent image B magnitude in Filtmagphot.magfloate_Bmag[0.001/0.04] Uncertainty in Bmagmagstat.error;phot.magfloatObsObservatory (not for Tables 2 and 4) (1)meta.id;instr.obstycharFiltr-band (from MDM, WIYN, LRT, and USNO) or g-band from LRT (Table 4)meta.code;instr.filterchar