Observational search for PeV-EeV tau neutrino from GRB081203A

Y. Aita*, T. Aoki, Y. Asaoka, T. Chonan, M. Jobashi, M. Masuda, Y. Morimoto, K. Noda, M. Sasaki, J. Asoh, N. Ishikawa, S. Ogawa, J. G. Learned, S. Matsuno, S. Olsen, P. M. Binder, J. Hamilton, N. Sugiyama, Y. Watanabe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


We report the first observational search for tau neutrinos (ντ) from gamma-ray bursts (GRBs) using one of the Ashra light collectors. The Earth-skimming ντ technique of imaging Cherenkov τ showers was applied as a detection method. We set stringent upper limits on the ντ fluence in PeV-EeV region for 3780s (between 2.83 and 1.78hr before) and another 3780s (between 21.2 and 22.2hr after) surrounding GRB081203A triggered by the Swift satellite. This first search for PeV-EeV ντ complements other experiments in energy range and methodology, and suggests the prologue of "multi-particle astronomy" with a precise determination of time and location.

Original languageEnglish
Article numberL12
JournalAstrophysical Journal Letters
Issue number1
Publication statusPublished - 2011 Jul 20
Externally publishedYes


  • gamma-ray burst: individual (GRB 081203A)
  • methods: observational
  • neutrinos

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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