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Probing neutrino emission at GeV energies from compact binary mergers detected during O1-O4a with the IceCube Neutrino Observatory

  • 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 Kansas
  • University of Delaware
  • Marquette University
  • Harvard University
  • University of Utah
  • Michigan State University
  • South Dakota School of Mines & Technology
  • University of California at Irvine
  • Technical University of Munich
  • University of California at Berkeley
  • Ohio State University
  • Ruhr University Bochum
  • Chalmers University of Technology
  • RWTH Aachen University
  • Uppsala University
  • University of Rochester
  • University of Maryland, College Park
  • University of Padua
  • University of Alabama
  • Karlsruhe Institute of Technology
  • National Institute for Nuclear Physics
  • Johannes Gutenberg University Mainz
  • Georgia Institute of Technology
  • Queen's University Kingston
  • Adelaide University
  • Drexel University

Research output: Contribution to journalConference articlepeer-review

Abstract

Compact binary mergers, detected in gravitational waves since 2015, are candidate sources for astrophysical neutrinos in the GeV regime from proton-proton and proton-neutron collisions. This contribution presents the results of the search for such a signal using mergers detected during the fourth observing run of the LIGO, Virgo, and KAGRA interferometers. We use the dense infill array at the center of the IceCube detector, IceCube-DeepCore, to select neutrino candidates in the 0.5-–5 GeV energy range. The search for a statistically significant excess associated with an astrophysical signal is performed in a ±500 s window around the gravitational wave detection time. We do not observe any statistically significant excess in the neutrino data, and set upper limits on the neutrino emission from these objects. Additionally, we search for subpopulations of neutrino-emitting sources, including merger events detected in previous observing runs; no significant signal has been identified yet.

Original languageEnglish
Article number947
JournalProceedings of Science
Volume501
DOIs
StatePublished - Dec 30 2025
Event39th International Cosmic Ray Conference, ICRC 2025 - Geneva, Switzerland
Duration: Jul 15 2025Jul 24 2025

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