Author:
Pitik Tetyana,Tamborra Irene,Petropoulou Maria
Abstract
Abstract
Long duration gamma-ray bursts (GRBs) are among the least
understood astrophysical transients powering the high-energy
universe. To date, various mechanisms have been proposed to explain
the observed electromagnetic GRB emission. In this work, we show
that, although different jet models may be equally successful in
fitting the observed electromagnetic spectral energy distributions,
the neutrino production strongly depends on the adopted emission and
dissipation model. To this purpose, we compute the neutrino
production for a benchmark high-luminosity GRB in the internal shock
model, including a dissipative photosphere as well as three emission
components, in the jet model invoking internal-collision-induced
magnetic reconnection and turbulence (ICMART), in the case of a
magnetic jet with gradual dissipation, and in a jet with dominant
proton synchrotron radiation. We find that the expected neutrino
fluence can vary up to three orders of magnitude in amplitude and
peak at energies ranging from 104 to 108 GeV. For our
benchmark input parameters, none of the explored GRB models is
excluded by the targeted searches carried out by the IceCube and
ANTARES Collaborations. However, our work highlights the potential
of high-energy neutrinos of pinpointing the underlying GRB emission
mechanism and the importance of relying on different jet models for
unbiased stacking searches.
Subject
Astronomy and Astrophysics
Cited by
25 articles.
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