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Sentinel of the extraordinary: the IceCube alert system for neutrino flares

  • The IceCube Collaboration
  • Loyola University Chicago
  • German Electron Synchrotron
  • University of Canterbury
  • University of Wisconsin-Madison
  • Institute of Physics Bhubaneswar
  • Université libre de Bruxelles
  • University of Copenhagen
  • TU Dortmund University
  • University of Delaware
  • Marquette University
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Harvard University
  • University of Utah
  • South Dakota School of Mines & Technology
  • University of California at Irvine
  • University of California at Berkeley
  • Ohio State University
  • Ruhr University Bochum
  • Chalmers University of Technology
  • Uppsala University
  • Technical University of Munich
  • RWTH Aachen University
  • University of Rochester
  • University of Maryland, College Park
  • University of Padua
  • University of Kansas
  • Karlsruhe Institute of Technology
  • Johannes Gutenberg University Mainz
  • Georgia Institute of Technology
  • University of Adelaide
  • University of Münster
  • Drexel University

Research output: Contribution to journalConference articlepeer-review

Abstract

The IceCube Neutrino Observatory has the invaluable capability of continuously monitoring the whole sky. This has affirmed the role of IceCube as a sentinel, providing real-time alerts to the astrophysical community on the detection of high-energy neutrinos and neutrino flares from a variety of astrophysical sources. As a response to the IceCube alerts, different observatories can join forces in the multi-messenger observation of transient events and the characterisation of their astrophysical sources. The 2017 breakthrough identification of blazar TXS 0506+056 as the source of high-energy neutrinos and UHE gamma rays was proof of this strategy. The Gamma-ray Follow-Up (GFU) is the IceCube program for identifying high-energy muon neutrino single events, as well as outstanding neutrino flares from relevant sources and the whole wide universe. While the identification of single high-energy neutrinos is shared on public alert distribution networks, partner Imaging Air Cherenkov Telescopes are sent low-latency alerts following the detection of neutrino flares, for which they have dedicated follow-up programs. I will present an overview of the GFU platform together with new results from the analysis of recorded neutrino flares, after a dozen years of GFU operation and hundreds of alerts being sent.

Original languageEnglish
Article number1500
JournalProceedings of Science
Volume444
StatePublished - Sep 27 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: Jul 26 2023Aug 3 2023

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