Upper Limits to Fluxes of Neutrinos and Gamma-Rays from Starburst Galaxies

Abstract

Loeb and Waxman have argued that high energy neutrinos from the decay of pions produced in interactions of cosmic rays with interstellar gas in starburst galaxies would be produced with a large enough flux to be observable. Here we obtain an upper limit to the diffuse neutrino flux from starburst galaxies which is a factor of $\sim$5 lower than the flux which they predict. Compared with predicted fluxes from other extragalactic high energy neutrino sources, starburst neutrinos with $\sim$ PeV energies would have a flux considerably below that predicted for AGN models. We also estimate an upper limit for the diffuse GeV $\gamma$-ray flux from starbust galaxies to be $\mathcal{O}$$(10^{-2})$ of the observed $\gamma$-ray background, much less than the component from unresolved blazars.

arXiv comment4 pages, for Proc. TeV2 Conf., Madison, WI, to be published in J. Phys

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Cited by in corpus (7)

• Evidence against star-forming galaxies as the dominant source of IceCube neutrinos
• Components of the Extragalactic Gamma Ray Background
• Multi-messenger model for the starburst galaxy M82
• Diffuse PeV neutrino emission from Ultra-Luminous Infrared Galaxies
• On The Origin of IceCube's PeV Neutrinos
• Baryon Loading Efficiency and Particle Acceleration Efficiency of Relativistic Jets: Cases For Low Luminosity BL Lacs
• The Diffuse Gamma-ray Background from Type Ia Supernovae