High-energy neutrino emission from low-mass microquasars

Details High-energy neutrino emission from low-mass microquasars High-energy neutrino emission from low-mass microquasars

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mnras.407.2468z&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 407, Issue 4, pp. 2468-2474.

Astronomy and Astrophysics

Astronomy

2

Neutrinos, Stars: Individual: Gx339-4, Gamma-Rays: Stars, X-Rays: Binaries

Scientific paper

In this paper we study the high-energy neutrino emission from low-mass microquasars (LMMQs) by assuming that an acceleration region for particles is located in the inner jet, based on the framework of a hadronic jet model. Adopting the parametrized formulae for inelastic pp interactions and the recent pγ parametrizations, we calculate the spectral energy distributions (SEDs) of various photon and neutrino spectra. Furthermore, we also consider the electromagnetic cascade processes due to γγ absorption. We then apply the jet model to the microquasar (MQ) GX339-4, and calculate the expected neutrino event rate for three years of observations using the newest effective area of the KM3NeT detector in the Mediterranean Sea. The resulting results indicate that (1) photon spectra can roughly reproduce observations from radio to X-ray energies, and can also predict emission fluxes at high and very high energies (VHE); (2) GX339-4 is a potential neutrino source, neutrinos from which are likely to be identified with some years of observations from the next-generation -scale neutrino telescopes.

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