J/ApJ/891/170ivo://CDS.VizieR/J/ApJ/891/170doi:10.26093/cds/vizier.18910170CDSValverde J.Horan D.Bernard D.Fegan S.Abeysekara A.U.Archer A.,Benbow W.Bird R.Brill A.Brose R.Buchovecky M.Buckley J.H.,Christiansen J.L.Cui W.Falcone A.Feng Q.Finley J.P.Fortson L.,Furniss A.Gent A.Gillanders G.H.Giuri C.Gueta O.Hanna D.,Hassan T.Hervet O.Holder J.Hughes G.Humensky T.B.Kaaret P.,Kelley-Hoskins N.Kertzman M.Kieda D.Krause M.Krennrich F.,Lang M.J.Maier G.Moriarty P.Mukherjee R.Nieto D.Nievas-Rosillo M.,O'Brien S.Ong R.A.Otte A.N.Park N.Petrashyk A.Pfrang K.,Pichel A.Pohl M.Prado R.R.Pueschel E.Quinn J.Ragan K.,Reynolds P.T.Ribeiro D.Richards G.T.Roache E.Sadeh I.Santander M.,Scott S.S.Sembroski G.H.Shahinyan K.Shang R.Sushch I.,Vassiliev V.V.Weinstein A.Wells R.M.Wilcox P.Wilhelm A.,Williams D.A.Williamson T.J.Noto G.Edwards P.G.Piner B.G.,Fallah Ramazani V.Hovatta T.Jormanainen J.Lindfors E.Nilsson K.,Takalo L.Kovalev Y.Y.Lister M.L.Pushkarev A.B.Savolainen T.,Kiehlmann S.Max-Moerbeck W.Readhead A.C.S.Lahteenmaki A.,Tornikoski M.2022-01-19T09:02:08Z2021-09-10T09:20:52ZCDS support team

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

cds-question@unistra.frbl-lacertae-objectsgamma-ray-astronomyx-ray-sourcesphotometryultraviolet-astronomyvisible-astronomyradio-sourcesBlazars are known for their variability on a wide range of timescales at all wavelengths. Most studies of TeV gamma-ray blazars focus on short timescales, especially during flares. With a decade of observations from the Fermi-LAT and VERITAS, we present an extensive study of the long-term multiwavelength radio-to-gamma-ray flux-density variability, with the addition of a couple of short-time radio-structure and optical polarization observations of the blazar 1ES 1215+303 (z=0.130), with a focus on its gamma-ray emission from 100MeV to 30TeV. Multiple strong GeV gamma-ray flares, a long-term increase in the gamma-ray and optical flux baseline, and a linear correlation between these two bands are observed over the ten-year period. Typical HBL behaviors are identified in the radio morphology and broadband spectrum of the source. Three stationary features in the innermost jet are resolved by Very Long Baseline Array at 43.1, 22.2, and 15.3GHz. We employ a two-component synchrotron self-Compton model to describe different flux states of the source, including the epoch during which an extreme shift in energy of the synchrotron peak frequency from infrared to soft X-rays is observed.2020ApJ...891..170Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/891/170CatalogResearchIsServedByTAP VizieR generic servicerelated-toVIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)J/A+AS/132/305 : Extragal. radio sources at 22, 37 and 87GHz (Terasranta+ 1998)J/ApJS/148/275 : ASCA AGN optical identifications (Akiyama+, 2003)J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)J/ApJ/690/163 : The first Swift UV-Opt GRB afterglow catalog (Roming+, 2009)J/ApJ/722/520 : Gamma-ray light curves of Fermi blazars (Abdo+, 2010)J/ApJS/194/29 : Observations of blazars at 15GHz (Richards+, 2011)J/AJ/142/89 : Precise astrometry with VLBA (VIPS) (Petrov+, 2011)J/A+A/545/A117 : Monitoring of Mrk 421 at 15 and 24 GHz (Lico+, 2012)J/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015)J/ApJ/814/35 : Flare events in M dwarf of M37 (Chang+, 2015)J/A+A/590/A10 : 3C 279 optical photometry and polarimetry (Kiehlmann+, 2016)J/A+A/594/A26 : 2nd Planck Catalog of Compact Sources (PCCS2) (Planck+, 2016)J/A+A/596/A78 : R-band polarization curves of 48 BL Lacs (Hovatta+, 2016)J/MNRAS/467/4565 : Bimodal radio variability in OVRO blazars (Liodakis+, 2017)J/MNRAS/468/4992 : MOJAVE XIV. AGN jet shapes (Pushkarev+, 2017)J/ApJ/853/68 : Multi-epoch VLBA imaging of 20 Tev blazars (Piner+, 2018)J/ApJS/234/12 : MOJAVE XV. 15GHz obs. of AGN jets 1996-2016 (Lister+, 2018)J/A+A/620/A185 : Long-term optical monitoring of TeV Blazars (Nilsson+, 2018)J/ApJ/874/43 : MOJAVE. XVII. pc-scale jet kinematics of AGNs (Lister+, 2019)J/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/891/170https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/891/170http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/891/170https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/891/170https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/891/170http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/891/170GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap9.939104355462015e-24 2.4516457410139638e-23Gamma-rayX-rayUVOpticalRadiodefaultJ/ApJ/891/170/veritasVERITAS >200GeV flux time seriesl_Flux95% upper limit flagsmeta.code.error;phot.fluxcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[54834.5/57902.5] Modified Julian Date (JD-2400000.5)dtime.epochdoubleFlux[-6.8e-12/5e-10] Flux, VERITAS >200GeVph.cm**-2.s**-1phot.flux.density;em.gamma.harddoublee_Flux[1.4e-12/1.7e-11]? Uncertainty in Fluxph.cm**-2.s**-1stat.error;phot.fluxdoublenullableJ/ApJ/891/170/latFermi-LAT 0.1-500GeV flux time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[54684.15/57999.2] Modified Julian Date (JD-2400000.5)dtime.epochdoubleFlux[1.8e-10/5.7e-7] Flux, Fermi-LAT 0.1-500GeVph.cm**-2.s**-1phot.flux.density;em.gamma.harddoublee_Flux[5.2e-9/1.4e-7] Uncertainty in Fluxph.cm**-2.s**-1stat.error;phot.fluxdoubleJ/ApJ/891/170/xrt_pcSwift XRT PC 0.3-10keV flux time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[55168.67/57866.6] Modified Julian Date, observation midpointdtime.epochdoubleFlux[2.7e-12/3.4e-11] Swift XRT/PC Flux, 0.3-10keVmW.m**-2phot.flux;em.X-raydoubleb_Flux[2.5e-12/3.3e-11] Lower bound on FluxmW.m**-2phot.flux;stat.mindoubleB_Flux[2.9e-12/3.4e-11] Upper bound on FluxmW.m**-2phot.flux;stat.maxdoubleGamma[2.1/3.1] Photon Indexmeta.code;spect.indexdoublee_Gamma[0.03/0.4] Uncertainty in Gammastat.errordoubleMJD0[55168.67/57866.6] Modified Julian Date, observation startdtime.epochdoubleDateObservation start, ISO 8601 date time stringstime.start;obsnullableExp[907.6/4995.3] XRT exposure timestime.duration;obs.exposuredoubleJ/ApJ/891/170/xrt_wtSwift XRT WT 0.3-10keV flux time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[55168.67/57866.6] Modified Julian Date, observation midpointdtime.epochdoubleFlux[2.7e-12/3.4e-11] Swift XRT/PC Flux, 0.3-10keVmW.m**-2phot.flux;em.X-raydoubleb_Flux[2.5e-12/3.3e-11] Lower bound on FluxmW.m**-2phot.flux;stat.mindoubleB_Flux[2.9e-12/3.4e-11] Upper bound on FluxmW.m**-2phot.flux;stat.maxdoubleGamma[2.1/3.1] Photon Indexmeta.code;spect.indexdoublee_Gamma[0.03/0.4] Uncertainty in Gammastat.errordoubleMJD0[55168.67/57866.6] Modified Julian Date, observation startdtime.epochdoubleDateObservation start, ISO 8601 date time stringstime.start;obsnullableExp[907.6/4995.3] XRT exposure timestime.duration;obs.exposuredoubleJ/ApJ/891/170/uvotSwift UVOT magnitude and flux time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFileFilenamemeta.id;meta.filecharObjObjectmeta.notecharObs[2009/2017] Observation UTC date, yearstime.epoch;obsMJD[55168.68/57866.8] Modified Julian Date of observation (JD-2400000.5)dtime.epochdoubleExp[36.19/1963.66] Exposure timestime.duration;obs.exposuredoubleFilt[1/6] Filter Code (1)meta.code;instr.filterintomag[13.5/16.03] Observed magnitude in Filtmagphot.magfloate_omag[0.03/0.07] Uncertainty in omagmagstat.error;phot.magfloatomag0[13.43/15.96] Magnitude, corrected for extinction (2)magphot.mag;arith.difffloatFlux[8.3e-12/4.5e-11] Flux in Filt, in erg/s/cm2 unitsmW.m**-2phot.flux.densitydoublee_Flux[3.4e-13/2.1e-12] Uncertainty in FluxmW.m**-2stat.error;phot.fluxdoubleFlux2[0.56/7.63] Flux in FiltermJyphot.flux.densityfloate_Flux2[0.02/0.4] Uncertainty in Flux2mJystat.errorfloatlog(nu)[14.74/15.17] log10, central frequency of Filtlog(Hz)em.freqfloatlog(nuf)[-11.1/-10.3] log10, nu*Fluxphot.fluxfloatJ/ApJ/891/170/tuorlaTuorla Observatory optical R band flux density time seriese_Flux[4.7e-5/0.0002] Uncertainty in FluxmJystat.error;phot.fluxdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Datedtime.epochdoubleFlux[0.0016/0.0088] Flux density, Tuorla optical R bandmJyphot.flux.density;em.opt.RdoubleJ/ApJ/891/170/notNordic Optical Telescope R band flux density and polarization time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date of observationdtime.epochdoublePol[0/16.4] Polarization fraction%phys.polarizationfloatb_Pol[0/16.3] Lower bound on Pol, Pol-e_Pol%phys.polarization;stat.minfloatB_Pol[5/67.1] Upper bound on Pol, Pol+e_Pol%phys.polarization;stat.maxfloatPA[134.6/173.7] Positional angle of polarizationdegphys.polarizationfloate_PA[0.2/63.3] Uncertainty in PAdegstat.errorfloatJ/ApJ/891/170/ovroOVRO 15GHz flux density time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[54473.38/57999.04] Modified Julian Date (JD-2400000.5)dtime.epochdoubleFlux[0.04/0.53] Flux density, OVRO 15GHzJyphot.flux.density;em.radio.12-30GHzdoublee_Flux[0.003/0.3] Uncertainty in FluxJystat.error;phot.fluxdoubleJ/ApJ/891/170/metMetsahovi Radio Observatory 37GHz flux density time seriesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintYear[2002.14/2016.21] Observation date, Fractional yeartime.epoch;obsdoubleDateObservation date, ISO 8601 date time stringstime.epoch;obsnullableFlux[0.08/0.7] Flux density, Metsahovi Radio Observatory 37GHzJyphot.flux.density;em.mm.30-50GHzfloate_Flux[0.04/0.15] Uncertainty in FluxJystat.error;phot.fluxfloatf_FluxFlag on Flux, *= detection S/N>4meta.codecharMJDModified Julian Date; column added by CDSdtime.epochdouble