J/ApJS/245/18ivo://CDS.VizieR/J/ApJS/245/18doi:10.26093/cds/vizier.22450018CDSFraija N.Benitez E.Hiriart D.Sorcia M.Lopez J.M.Mujica R.,Cabrera J.I.Galvan-Gamez A.2020-10-01T13:29:58Z2020-06-04T15:00:13ZCDS support team

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

cds-question@unistra.frquasarspolarimetryinfrared-photometryvisible-astronomyphotometryAn exhaustive analysis of 9yr optical R-band photopolarimetric data of the flat-spectrum radio quasar 3C 279 from 2008 February 27 to 2017 May 25 is presented, along with multiwavelength observing campaigns performed during the flaring activity exhibited in 2009 February/March, 2011 June, 2014 March/April, 2015 June, and 2017 February. In the R band, this source showed the maximum brightness state of 13.68+/-0.11mag (1.36+/-0.20mJy) on 2017 March 2 and the lowest brightness state ever recorded of 18.20+/-0.87 mag (0.16+/-0.03mJy) on 2010 June 17. During the entire period of observations, the polarization degree varied between 0.48%+/-0.17% and 31.65%+/-0.77%, and the electric vector position angle (EVPA) exhibited large rotations between 82.98+/-0.92{deg} and 446.32+/-1.95{deg}. Optical polarization data show that this source has a stable polarized component that varied from~6% (before the 2009 flare) to~13% after the flare. The overall behavior of our polarized variability data supports the scenario of jet precessions as responsible for the observed large rotations of the EVPA. Discrete correlation function analysis shows that the lags between gamma-rays and X-rays compared to the optical R-band fluxes are {Delta}t~31 days and 1 day in 2009. Lags were also found among gamma-rays compared with X-rays and radio of {Delta}t~30 and 43 days in 2011, and among radio and optical R band of {Delta}t~10 days in 2014. A very intense flare in 2017 was observed in optical bands, with a dramatic variation in the polarization degree (from~6% to 20%) in 90 days without exhibiting flaring activity in other wavelengths.2019ApJS..245...18Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/245/18CatalogResearchIsServedByTAP VizieR generic servicerelated-toVII/283 : The Million Quasars (Milliquas) catalog (6.3) (Flesch, 2019)J/A+A/332/410 : Quasar polarization (Hutsemekers 1998)J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)J/ApJ/522/846 : Optical monitoring of GeV loud blazars (Xie+, 1999)J/A+A/353/77 : Variability + polarization of luminous QSOs (Teerikorpi+, 2000)J/A+A/409/857 : Optical polarization of 3C 279 (Andruchow+, 2003)J/A+A/433/757 : Optical polarization of 203 QSOs (Sluse+, 2005)J/A+A/441/915 : Alignments of quasar polarization vectors (Hutsemekers+, 2005)J/AJ/130/1389 : Linear polarization of AGN jets at 15GHz (Lister+, 2005)J/AJ/133/2866 : 2001-02 opt. variability of blazar 3C 279 (Kartaltepe+, 2007)J/AJ/134/799 : Multiwaveband polarimetry of 15 AGN (Jorstad+, 2007)J/AJ/135/1384 : R-band variability in 5 blazars (Gupta+, 2008)J/ApJS/194/29 : Observations of blazars at 15GHz (Richards+, 2011)J/A+A/548/A79 : INTEGRAL-OMC optically variable sources (Alfonso-Garzon+, 2012)J/ApJ/772/13 : VLBI observations of 3C 279 at 230GHz (Lu+, 2013)J/ApJ/794/54 : Polarization and photometry for blazar W Comae (Sorcia+, 2014)J/ApJ/829/5 : S-PASS & NVSS bright extragalactic radio sources (Lamee+, 2016)J/A+A/590/A10 : 3C 279 optical photometry and polarimetry (Kiehlmann+, 2016)J/A+A/591/A21 : Optical flux behaviour of Fermi blazars (Marchesini+, 2016)J/ApJS/232/7 : 8yr R-band photopolarimetric data of Mrk 421 (Fraija+, 2017)J/A+A/609/A68 : Full-Stokes polarimetry of 5 radio sources (Myserlis+, 2018)J/A+A/620/A68 : Polarization of quasars (Hutsemekers+, 2018)J/A+A/630/A56 : A gamma-ray emission zone in 3C 279 (Patino-Alvarez+, 2019)J/MNRAS/493/L54 : Optical polarization properties of AGNs (Kovalev+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/245/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/245/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/245/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/245/18https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/245/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/245/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJS/245/18/table1R-band photopolarimetric data of quasar 3C 279 from 2008 February 27 to 2017 May 25recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD[4524/7898.9] Julian Date; JD-2450000dtime.epochdoublePol[0.48/31.7] Polarization degree%phys.polarizationfloate_Pol[0.3/6.5] Uncertainty in Pol%stat.errorfloatEVPA[82.9/446.4] Electric vector position angledegpos.posAng;phys.polarizationfloate_EVPA[0.7/24] Uncertainty in EVPAdegstat.errorfloatRmag[13.6/18.2] Apparent R band magnitudemagphot.mag;em.opt.Rfloate_Rmag[0.1/0.9] Uncertainty in Rmagmagstat.error;phot.mag;em.opt.RfloatFR[0.16/10.4] R band flux densitymJyphot.flux.density;em.opt.Rfloate_FR[0.02/0.2] Uncertainty in FRmJystat.errorfloat