J/ApJ/893/68ivo://CDS.VizieR/J/ApJ/893/68doi:10.26093/cds/vizier.18930068CDSKravchenko E.V.Gomez J.L.Kovalev Y.Y.Lobanov A.P.Savolainen T.,Bruni G.Fuentes A.Anderson J.M.Jorstad S.G.Marscher A.P.,Tornikoski M.Lahteenmaki A.Lisakov M.M.2021-12-03T12:43:28Z2021-10-04T07:53:24ZCDS support team

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

cds-question@unistra.frinterferometrybl-lacertae-objectsradio-sourcesWe present RadioAstron Space VLBI imaging observations of the BL Lac object S5 0716+71 made on 2015 January 3-4 at a frequency of 22GHz (wavelength {lambda}=1.3cm). The observations were made in the framework of the AGN Polarization Key Science Program. The source was detected on projected space-ground baselines up to 70833km (5.6 Earth diameters) for both parallel-hand and cross-hand interferometric visibilities. We have used these detections to obtain a full-polarimetric image of the blazar at an unprecedented angular resolution of 24{mu}as, the highest for this source to date. This enabled us to estimate the size of the radio core to be <12x5{mu}as and to reveal a complex structure and a significant curvature of the blazar jet in the inner 100{mu}as, which is an indication that the jet viewing angle lies inside the opening angle of the jet conical outflow. Fairly highly (15%) linearly polarized emission is detected in a jet region 19{mu}as in size, located 58{mu}as downstream from the core. The highest brightness temperature in the source frame is estimated to be >2.2x10^13^K for the blazar core. This implies that the inverse-Compton limit must be violated in the rest frame of the source, even for the largest Doppler factor {delta}~25 reported for 0716+714.2020ApJ...893...68Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/893/68CatalogResearchIsServedByTAP VizieR generic servicerelated-toVIII/5 : Bright Extragalactic Radio Sources (1Jy) (Kuehr+, 1981)J/A+AS/132/305 : Extragal. radio sources at 22, 37 and 87GHz (Terasranta+ 1998)J/AJ/130/2473 : Fine-scale structure in 250 sources at 15GHz (Kovalev+, 2005)J/AJ/146/120 : MOJAVE. X. Parsec-scale kinematics of AGNs (Lister+, 2013)J/ApJ/783/83 : BVRI photometry of S5 0716+714 (Liao+, 2014)J/A+A/604/A111 : 22GHz image of 3C 273 (Bruni+, 2017)J/ApJ/846/98 : Jet kinematics of blazars at 43GHz with VLBA (Jorstad+, 2017)J/MNRAS/468/4992 : MOJAVE XIV. AGN jets & opening angles (Pushkarev+, 2017)J/ApJS/234/12 : MOJAVE XV. 15GHz obs. of AGN jets 1996-2016 (Lister+, 2018)J/A+A/619/A45 : S5 0716+714 multi-wave. curves (MAGIC Collaboration+, 2018)J/ApJ/874/43 : MOJAVE. XVII. Parsec-scale jet kinematics (Lister+, 2019)J/A+A/622/A92 : Ultracompact radio sources at 86GHz (Nair+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/893/68https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/893/68http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/893/68https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/893/68https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/893/68http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/893/68GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJ/893/68/table3Results of decomposition of 37GHz light curve into individual flares and model fitted results for the core component at 43GHz at corresponding epochsdelta[1.3/14.5]? Doppler factorspect.dopplerParamfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFlare[1/27] Running sequence numbermeta.id;meta.mainintSmax[1.1/5.4] Maximum amplitudeJyphot.flux.density;stat.maxfloate_Smax[0.03/0.5] Uncertainty in SmaxJystat.errorfloattmax[2012.14/2016.92] Epoch of the flare maximum (1)yrtime.epochfloattauvar[0.003/0.5] Flare rise timescaleyrtime.scalefloate_tauvar[0.001/0.06] Uncertainty in tauvaryrstat.errorfloatlogTb[12.24/16.63] Log variability brightness temperaturelog(K)src.varfloate_logTb[0.04/0.6] Uncertainty in logTblog(K)stat.errorfloatdelVarVariability Doppler factorspect.dopplerParamfloatScore[1.9/3.5]? Core flux densityJyphot.flux.density;em.radiofloatnullablee_Score[0.1/0.2]? Uncertainty in ScoreJystat.errorfloatnullablef_Score[bc] Flag on Score (2)meta.codecharBU[2012.83/2016.91]? Epoch of nearby BU observationsyrtime.epochfloatnullableSize[16.5/47.1]? Radio core sizeuarcsecphys.angSizefloatnullablee_Size[0.4/3]? Uncertainty in Sizeuarcsecstat.error;phys.angSizefloatnullablelogTbrf[12.1/12.9]? Log rest frame brightness temperature (3)log(K)phys.temperaturefloatnullablee_logTbrf[0.02/0.08]? Uncertainty in logTb,rflog(K)stat.errorfloatnullablelogTbint[11.2/12.2]? Log intrinsic brightness temperaturelog(K)phys.temperaturefloatnullablee_logTbint[0.05/0.4]? Uncertainty in logTb,intlog(K)stat.errorfloatnullablee_delta[0.1/1]? Uncertainty in deltastat.error;pos.eq.decfloatnullable