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Aartsen, Mark; Ackermann, Markus; Adams, Jenni; Aguilar, Juan Antonio; Ahlers, Markus; Ahrens, Maryon; Al Samarai, Imen; Altmann, David; Andeen, Karen; Anderson, Tyler; Ansseau, Isabelle; Anton, Gisela; Argüelles, Carlos; Auffenberg, Jan; Axani, Spencer; Bagherpour, Hadis; Bai, Xinhua; Barron, Jared; Barwick, Steve; Baum, Volker; Bay, Ryan; Beatty, James; Becker, Karl Heinz; Tjus, Julia; [...]

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

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  • Medientyp: E-Artikel
  • Titel: Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
  • Beteiligte: Aartsen, Mark; Ackermann, Markus; Adams, Jenni; Aguilar, Juan Antonio; Ahlers, Markus; Ahrens, Maryon; Al Samarai, Imen; Altmann, David; Andeen, Karen; Anderson, Tyler; Ansseau, Isabelle; Anton, Gisela; Argüelles, Carlos; Auffenberg, Jan; Axani, Spencer; Bagherpour, Hadis; Bai, Xinhua; Barron, Jared; Barwick, Steve; Baum, Volker; Bay, Ryan; Beatty, James; Becker, Karl Heinz; Tjus, Julia; [...]
  • Erschienen: American Association for the Advancement of Science (AAAS), 2018
  • Erschienen in: Science
  • Sprache: Englisch
  • DOI: 10.1126/science.aat1378
  • ISSN: 0036-8075; 1095-9203
  • Schlagwörter: Multidisciplinary
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Neutrino emission from a flaring blazar</jats:title> <jats:p>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.</jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6398" page="147" related-article-type="in-this-issue" vol="361" xlink:href="10.1126/science.aat2890">147</jats:related-article> , p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aat1378">eaat1378</jats:related-article> </jats:p>