SIMBAD references

2020ApJ...890...83G - Astrophys. J., 890, 83-83 (2020/February-2)

Neutrino production associated with late bumps in gamma-ray bursts and potential contribution to diffuse flux at IceCube.

GUO G., QIAN Y.-Z. and WU M.-R.

Abstract (from CDS):

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.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Neutrino astronomy - Gamma-ray bursts - High energy astrophysics

Simbad objects: 7

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