2026-06-08T05:14:36Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1009482025-04-30T23:48:58Zcom_20.500.14352_14col_20.500.14352_15
Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
Domínguez Díaz, Alberto
Barrio Uña, Juan Abel
Contreras González, José Luis
Fonseca González, María Victoria
López Moya, Marcos
Nievas Rosillo, Mireia
Fidalgo, David
Sivakoff, Gregory
American Association for the Advancement of Science
Neutrino emission from a flaring blazar Neutrinos interact only very weakly with matter, but giant detectors have succeeded in detecting small numbers of astrophysical neutrinos. Aside from a diffuse background, only two individual sources have been identified: the Sun and a nearby supernova in 1987. A multiteam collaboration detected a high-energy neutrino event whose arrival direction was consistent with a known blazar—a type of quasar with a relativistic jet oriented directly along our line of sight. The blazar, TXS 0506+056, was found to be undergoing a gamma-ray flare, prompting an extensive multiwavelength campaign. Motivated by this discovery, the IceCube collaboration examined lower-energy neutrinos detected over the previous several years, finding an excess emission at the location of the blazar. Thus, blazars are a source of astrophysical neutrinos.
2024-02-09T13:13:05Z
2024-02-09T13:13:05Z
2024-02-09T13:13:05Z
2018
journal article
https://hdl.handle.net/20.500.14352/100948
0036-8075
10.1126/science.aat1378
1095-9203
eng
DE-AC02-76SF00515
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IceCube Collaboration, MAGIC, AGILE, ASAS-SN, HAWC, HESS, ... & Kappesser, D. (2018). Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science, 361(6398), eaat1378.
open access
American Association for the Advancement of Science