Neutrino Production Associated with Late Bumps in Gamma-Ray Bursts and Potential Contribution to Diffuse Flux at IceCube
Journal Article
·
· The Astrophysical Journal (Online)
- Academia Sinica, Taipei (Taiwan); University of Minnesota
- Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy; Shanghai Jiao Tong Univ. (China). Tsung-Dao Lee Institute
- Academia Sinica, Taipei (Taiwan) National Center for Theoretical Sciences, Hsinchu (Taiwan)
IceCube has detected many TeV–PeV neutrinos, but their astrophysical origins remain largely unknown. Motivated by the observed late-time X-ray/optical bumps in some gamma-ray bursts (GRBs), we examine the correlation between IceCube neutrinos and GRBs allowing delayed neutrinos ~days after the prompt gamma-rays. Although we have not found any definitive correlation, up to ~10% of the events observed so far at IceCube may have been neutrinos produced by the late-time GRB activities at ~1 day. Assuming a connection between some IceCube events and the late GRB bumps, we show in a model-independent way that GRB sites capable of producing late ~PeV neutrinos should be nonrelativistic or mildly relativistic. We estimate the diffuse neutrino flux from such sources and find that they can possibly account for a few IceCube events. Future observations of high-energy neutrinos and late-time GRB afterglows can further test the above proposed connection.
- Research Organization:
- Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-87ER40328
- OSTI ID:
- 1800665
- Alternate ID(s):
- OSTI ID: 23080145
- Journal Information:
- The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 1 Vol. 890; ISSN 1538-4357
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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