Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A

Science
IceCube CollaborationVLA/17B-403 teams

Abstract

Previous detections of individual astrophysical sources of neutrinos are limited to the Sun and the supernova 1987A, whereas the origins of the diffuse flux of high-energy cosmic neutrinos remain unidentified. On 22 September 2017, we detected a high-energy neutrino, IceCube-170922A, with an energy of ~290 tera-electron volts. Its arrival direction was consistent with the location of a known γ-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to γ-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy γ-rays. This observation of a neutrino in spatial coincidence with a γ-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.

References

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Dec 24, 2016·Physical Review Letters·M G AartsenUNKNOWN IceCube Collaboration
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Sep 15, 2017·Scientific Reports·Cain PolidanoJoel C Bornstein

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Citations

Nov 12, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·A Margiotta
Dec 1, 2018·Science·Elisa Prandini
Mar 2, 2019·Physical Review Letters·M G AartsenT Yuan
Jan 11, 2020·Physical Review Letters·Kohta Murase, Ian M Shoemaker
Jul 20, 2019·Physical Review Letters·Mauricio Bustamante, Markus Ahlers
Feb 23, 2020·Physical Review Letters·M G AartsenM Zöcklein
Jun 17, 2020·Reports on Progress in Physics·Yanou CuiPedro A N Machado
May 23, 2020·Physical Review. D·Mary Hall RenoTonia M Venters

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