J/ApJS/253/10ivo://CDS.VizieR/J/ApJS/253/10doi:10.26093/cds/vizier.22530010CDSFan J.H.Kurtanidze S.O.Liu Y.Kurtanidze O.M.Nikolashvili M.G.,Liu X.Zhang L.X.Cai J.T.Zhu J.T.He S.L.Yang W.X.Yang J.H.,Gu M.F.Luo G.Y.Yuan Y.H.2021-09-17T07:28:37Z2021-05-28T14:42:19ZCDS support team

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

cds-question@unistra.frquasarsinfrared-photometryvisible-astronomyphotometryccd-photometryIn this work, we present 8523 pairs of R-band optical photometry observations for the quasar 3C 454.3 made during the period of 2006 October - 2018 February on the 70cm meniscus telescope at Abastumani Observatory, Georgia, to study its intraday variabilities (IDVs) and long-term variations, and we have come to the following results. (1) We detected 10 outbursts, a {Delta}R=3.825mag variation, and some IDVs. The IDV timescales are from 4.1 to 285 minutes, with the corresponding variability amplitude being A=2.9%-43.67%. The amplitude increases with IDV timescale. (2) The largest variation over a 1 day timescale is {Delta}R=1.38mag. (3) The IDV timescales suggest that the emission sizes are from 8.9x10^13^cm to 6.20x10^15^cm, and the magnetic field strengths are B=0.18-0.79G. (4) Period analysis results show three possible long-term periods, p=3.04+/-0.02yr, p=1.66+/-0.06yr, and p=1.20+/-0.03yr in the optical light curve. We adopted the accretion disk models and the lighthouse models to period p=3.04+/-0.02yr: in the accretion disk models, the binary black holes have masses M=1.17x10^9^M_{sun}_; in the lighthouse models, we used two boosted jet flux densities to fit the observational light curve. (5) WWZ analysis gives some short-period (high-frequency) signals associated with strong bursts (JD2454302 and JD2454521) with variable frequencies and lasting for the entire observation time span (11.3yr).2021ApJS..253...10Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/253/10CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/127/445 : Gamma-ray loud blazars optical monitoring. II. (Raiteri+ 1998)J/ApJ/537/101 : Optical Study for blazars. I. (Fan+, 2000)J/A+A/375/739 : Hard X-ray properties of blazars (Donato+, 2001)J/ApJS/148/97 : The WMAP First Year Source Catalog (WMAP1) (Bennett+, 2003)J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)J/A+A/450/39 : BVRI photometry of 8 red blazars (Gu+, 2006)J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)J/ApJS/213/26 : Optical light curves of PHL1811 and 3C273 (Fan+, 2014)J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015)J/ApJS/226/20 : X-ray, opt. & radio SEDs of Fermi blazars (Fan+, 2016)J/ApJ/837/45 : 2006-2012 Rc-band & 4.8GHz obs. of AO 0235+164 (Fan+, 2017)J/ApJS/229/21 : VRI monitoring of the QSO 3C 273 in 2005-2016 (Xiong+, 2017)J/ApJ/835/L38 : Fermi blazars with Doppler factors (Fan+, 2017)J/AJ/155/90 : 1996-2009 optical phot. monitoring for 3C 66A (Fan+, 2018)J/ApJ/866/137 : Bright blazars variability brightness temp. (Liodakis+, 2018)J/ApJS/235/39 : Jet properties of {gamma}-ray-loud 3FGL AGNs (Chen, 2018)J/ApJS/248/8 : 9-yr of Fermi-LAT & Swift obs. of 3C 454.3 flares (Das+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/253/10https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/253/10http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/253/10https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/253/10https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/253/10http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/253/10GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJS/253/10/table1The R-band observational data for 3C 454.3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD[0.2/4136.2] Julian Date of observation; JD-2454028dtime.epochdoubleRmag[12.63/16.46] R band magnitudemagphot.mag;em.opt.Rfloate_Rmag[0/0.04] Uncertainty in Rmagmagstat.error;phot.magfloatJ/ApJS/253/10/table2The intraday variability (IDV) results of FSRQ 3C454.3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD[4301.3/7731.3] Observing time; JD-2450000dtime.epochdoublem1[12.34/16.18] Magnitude at the variability occurring pointmagphot.magfloatm2[12.51/16.18] Magnitude at the variability ending pointmagphot.magfloatsigma[0.0013/0.016] Uncertainty of the corresponding nightmagstat.stdev;phot.magfloatN[2/126] Number of pairs of observationsmeta.numberintC1[2.8/15.6] Variability index, target-comparison star #1 (1)src.var.indexfloatC2[2.6/16] Variability index, target-comparison star #2 (1)src.var.indexfloatF1[10.5/242] F-test value, target-comparison star #1 (1)stat.fit.paramfloatF2[7.4/245] F-test value, target-comparison star #2 (1)stat.fit.paramfloatF99[1.5/4063] Critical F value for the corresponding N at 99% levelstat.fit.paramfloatF99.9[1.7/20000] Critical F value for the corresponding N at 99.9% levelstat.fit.paramdoubleAmp[2.9/43.7] Variability amplitude%src.var.amplitudefloatTime[2/285] Corresponding time scalemintime.scalefloatVarVariability type (2)meta.notechar