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30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

MASTER optical observations of TXS 0506+056 during IC-170922A

Not scheduled
Virtual Seoul

Virtual Seoul

Poster Astrophysical neutrinos Poster


Mr Kirill Zhirkov (Lomonosov Moscow State University)


Astrophysical neutrinos are mysterious particles of ultra-high energies with no known progenitor. Since 2011, the IceCube neutrino observatory has been detecting numerous neutrino events with energies of hundreds of TeV. However, it hasn’t been able to pinpoint source for the majority of events. The only exception is IceCube-170922A whose source is believed to be a blazar TXS 0506+056 that was undergoing a flare across the whole electromagnetic spectrum. Despite this association, chance that this is simply a random coincidence was rejected at just 3σ which is not enough to be deemed a discovery. Here we will present results of TXS 0506+056’s rapid optical observations conducted by MASTER-Net telescopes mere minutes after the IceCube trigger that show clear evidence towards it being source of IceCube-170922A.

Collaboration MASTER

Primary author

Mr Kirill Zhirkov (Lomonosov Moscow State University)


Prof. Vladimir Lipunov (Lomonosov Moscow State University) Dr Oleg Gress (Irkutsk State University) Dr Nataly Tiurina (Lomonosov Moscow State University) Dr Evgeniy Gorbovskoy (Lomonosov Moscow State University) Dr Artem Kuznetsov (Lomonosov Moscow State University) Dr Vladimir Vladimirov (Lomonosov Moscow State University) Mr Aristarkh Chasovnikov (Lomonosov Moscow State University) Mr Vladislav Topolev (Lomonosov Moscow State University) Mr Daniil Vlasenko (Lomonosov Moscow State University) Mrs Valeria Grinshpun (Lomonosov Moscow State University) Mrs Ekaterina Minkina (Lomonosov Moscow State University) Mr Pavel Balanutsa (Lomonosov Moscow State University) Prof. Nikolay Budnev (Irkutsk State University) Mr Gleb Antipov (Lomonosov Moscow State University) Mrs Olga Ershova (Irkutsk State University)

Presentation Materials