@article{44daeb914e69446e93b78fd34d428558,
title = "Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A",
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 e290 tera-electron volts. Its arrival direction was consistent with the location of a known g-ray blazar, TXS 0506+056, observed to be in a flaring state. An extensive multiwavelength campaign followed, ranging from radio frequencies to g-rays. These observations characterize the variability and energetics of the blazar and include the detection of TXS 0506+056 in very-high-energy g-rays. This observation of a neutrino in spatial coincidence with a g-ray-emitting blazar during an active phase suggests that blazars may be a source of high-energy neutrinos.",
author = "{Icecube Collaboration} and {Fermi-LAT collaboration} and {MAGIC Collaboration} and AGILE and ASAS-SN and HAWC and H.E.S.S. and INTEGRAL and {Kanata, Kiso, and Subaru observing teams} and Kapteyn and {Liverpool telescope} and Swift/NuSTAR and VERITAS and {VLA/17B-403 team} and Aartsen, {M. G.} and M. Ackermann and J. Adams and Aguilar, {J. A.} and M. Ahlers and M. Ahrens and {Al Samarai}, I. and D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Arg{\"u}elles and J. Auffenberg and S. Axani and H. Bagherpour and X. Bai and Barron, {J. P.} and Barwick, {S. W.} and V. Baum and R. Bay and Beatty, {J. J.} and {Becker Tjus}, J. and Becker, {K. H.} and S. Benzvi and D. Berley and E. Bernardini and Besson, {D. Z.} and G. Binder and D. Bindig and E. Blaufuss and S. Blot and C. Bohm and M. B{\"o}rner and F. Bos and S. B{\"o}ser and O. Botner and E. Bourbeau and J. Bourbeau and F. Bradascio and J. Braun and M. Brenzke and Bretz, {H. P.} and S. Bron and J. Brostean-Kaiser and A. Burgman and Busse, {R. S.} and R. Luna-Garc{\'i}a and J. Mart{\'i}nez-Castro and R. Pelayo",
note = "Publisher Copyright: {\textcopyright} The Authors, some rights reserved.",
year = "2018",
month = jul,
day = "13",
doi = "10.1126/science.aat1378",
language = "Ingl{\'e}s",
volume = "361",
journal = "Science",
issn = "0036-8075",
number = "6398",
}