Optical Observations Reveal Strong Evidence for High Energy Neutrino Progenitor

• Main Authors: Lipunov, V. M., Kornilov, V. G., Zhirkov, K. K., Gorbovskoy, E. S., Budnev, N. M., Buckley, D. A. H., Rebolo, R., Serra-Ricart, M., Podesta, R., Tyurina, N., Gress, O., Sergienko, Yu., 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., Böttcher, M.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: arXiv 2020
• Subjects: High Energy Astrophysical Phenomena astro-ph.HE; High Energy Physics - Experiment hep-ex; Applied Physics physics.app-ph; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.2006.04918; https://arxiv.org/abs/2006.04918

We present the earliest astronomical observation of a high energy neutrino error box in which its variability was discovered after high-energy neutrinos detection. The one robotic telescope of the MASTER global international network (Lipunov et al. 2010) automatically imaged the error box of the very high-energy neutrino event IceCube-170922A. Observations were carried out in minute 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. Also we present own unique 16-years light curve of blazar TXS 0506+056 (518 data set). : 17 pages, 3 figures, 1 Table accepted to The Astrophysical Journal Letters