Neutrinos from the Brightest Gamma-Ray Burst?

Kohta Murase, Mainak Mukhopadhyay, Ali Kheirandish, Shigeo S. Kimura, Ke Fang

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We discuss implications that can be obtained by searches for neutrinos from the brightest gamma-ray burst (GRB), GRB 221009A. We derive constraints on GRB model parameters such as the cosmic-ray loading factor and dissipation radius, taking into account both neutrino spectra and effective areas. The results are strong enough to constrain proton acceleration near the photosphere, and we find that the single burst limits are comparable to those from stacking analysis. Quasi-thermal neutrinos from subphotospheres and ultra-high-energy neutrinos from external shocks are not yet constrained. We show that GeV-TeV neutrinos originating from neutron collisions are detectable, and urge dedicated analysis on these neutrinos with DeepCore and IceCube as well as ORCA and KM3NeT.

Original languageEnglish (US)
Article numberL10
JournalAstrophysical Journal Letters
Issue number1
StatePublished - Dec 1 2022

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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