J/ApJ/896/L19ivo://CDS.VizieR/J/ApJ/896/L19doi:10.26093/cds/vizier.18969019CDSLipunov V.M.Kornilov V.G.Zhirkov K.Gorbovskoy E.Budnev N.M.,Buckley D.A.H.Rebolo R.Serra-Ricart M.Podesta R.Tyurina N..,Gress O.Sergienko Y.Yurkov V.Gabovich A.Balanutsa P.Gorbunov I.,Vlasenko D.Balakin F.Topolev V.Pozdnyakov A.Kuznetsov A.,Vladimirov V.Chasovnikov A.Kuvshinov D.Grinshpun V.Minkina E.,Petkov V.B.Svertilov S.I.Lopez C.Podesta F.Levato H.Tlatov A.,Van Soelen B.Razzaque S.Bottcher M.2021-12-06T20:34:28Z2021-12-01T15:41:19ZCDS support team

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

cds-question@unistra.frbl-lacertae-objectsphotometryvisible-astronomyWe present the earliest astronomical observation of a high-energy neutrino error box of which the variability was discovered after high-energy-neutrino detection. The one robotic telescope of the MASTER global international networks automatically imaged the error box of the very high-energy-neutrino event IceCube-170922A. Observations were carried out in minutes after the IceCube-170922A neutrino event was detected by the IceCube observatory at the South Pole. MASTER found the blazar TXS 0506+056 to be in the off-state after one minute and then switched to the on-state no later than two hours after the event. The effect is observed at a 50{sigma} significance level. We also present own a unique 16yr light curve of blazar TXS 0506+056 (518 data set).2020ApJ...896L..19Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/896/L19CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/ApJS/194/29 : Observations of blazars at 15GHz (Richards+, 2011)J/ApJ/742/27 : 15GHz and jet properties of MOJAVE blazars (Lister+, 2011)J/ApJ/748/68 : WISE IR colors of gamma-ray blazars (D'Abrusco+, 2012)J/ApJ/767/14 : MASIV survey III. Optical identifications (Pursimo+, 2013)J/ApJS/212/15 : Polarized NVSS sources SEDs (Farnes+, 2014)J/MNRAS/438/3058 : 15GHz variability of {gamma}-ray blazars (Richards+, 2014)J/MNRAS/450/2658 : RATAN-600 flux densities of 123 blazars (Mufakharov+, 2015)J/other/AstBu/70.264 : Sample of 877 blazars (Mingaliev+, 2015)J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015)J/ApJ/864/84 : Swift follow-up obs. of TXS 0506+056 (Keivani+, 2018)J/ApJ/873/132 : ICRF3 radio-loud quasars with Gaia DR2 data (Makarov+, 2019)J/ApJ/874/43 : MOJAVE. XVII. pc-scale jet kinematics of AGNs (Lister+, 2019)J/ApJ/880/32 : Opt./{gamma}-ray flares for Fermi-LAT blazars (Liodakis+, 2019)J/ApJS/242/5 : 40yr of astrometric VLBI obs. of ICRF sources (Xu+, 2019)J/A+A/650/A83 : Radio flux densities of neutrino associations (Hovatta+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/896/L19https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/896/L19http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/896/L19https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/896/L19https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/896/L19http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/896/L19GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/896/L19/table1MASTER-NET photometry of the blazar TXS 0506+056 since 2005 till 2020 years in Clear bandrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJD[2453676.5/2458940.4] Julian Datedtime.epochdoubleClrmag[14.1/15.9] Apparent clear band magnitudemagphot.mag;em.optfloate_Clrmag[0.01/0.2] Uncertainty in Clrmagmagstat.error;phot.magfloatSiteObserving site identifier (1)meta.id;meta.maincharRef1mag[14.3/14.7] Reference star 1 apparent magnitudemagphot.mag;em.optfloatRef2mag[14.7/15.1] Reference star 2 apparent magnitudemagphot.mag;em.optfloatRef3mag[14.7/15.1] Reference star 3 apparent magnitudemagphot.mag;em.optfloatRef4mag[14.6/15] Reference star 4 apparent magnitudemagphot.mag;em.optfloatRef5mag[14.6/15.1] Reference star 5 apparent magnitudemagphot.mag;em.optfloatRef6mag[14.4/14.9] Reference star 6 apparent magnitudemagphot.mag;em.optfloatRef7mag[15.1/15.8] Reference star 7 apparent magnitudemagphot.mag;em.optfloatRef8mag[14.9/15.5] Reference star 8 apparent magnitudemagphot.mag;em.optfloat