Optical Observations Reveal Strong Evidence for High-energy Neutrino Progenitor

V. M. Lipunov, V. G. Kornilov, K. Zhirkov, E. Gorbovskoy, N. M. Budnev, D. A.H. Buckley, R. Rebolo, M. Serra-Ricart, R. Podesta, N. Tyurina, O. Gress, Y. Sergienko, V. Yurkov, A. Gabovich, P. Balanutsa, I. Gorbunov, D. Vlasenko, F. Balakin, V. Topolev, A. PozdnyakovA. Kuznetsov, V. Vladimirov, A. Chasovnikov, D. Kuvshinov, V. Grinshpun, E. Minkina, V. B. Petkov, S. I. Svertilov, C. Lopez, F. Podesta, H. Levato, A. Tlatov, B. Van Soelen, S. Razzaque, M. Böttcher

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We 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 50σ significance level. We also present own a unique 16 yr light curve of blazar TXS 0506+056 (518 data set).

Original languageEnglish
Article numberL19
JournalAstrophysical Journal Letters
Issue number2
Publication statusPublished - 20 Jun 2020

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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