Matter-affected neutrino oscillations in ordinary and mirror stars and their implications for gamma-ray bursts

Details Matter-affected neutrino oscillations in ordinary and mirror stars and their implications for gamma-ray bursts Matter-affected neutrino oscillations in ordinary and mirror stars and their implications for gamma-ray bursts

1999-07-13

arxiv.org/abs/astro-ph/9907161v1

Astropart.Phys.13:21-30,2000

Astronomy and Astrophysics

Astrophysics

12 pages, RevTeX

Scientific paper

10.1016/S0927-6505(99)00098-5

It has been proposed that the annihilation process $\nu\bar{\nu} \to e^{-}e^{+} \to \gamma\gamma$ may be responsible for the generation of gamma-ray bursts (GRBs). The incipient neutrino--antineutrino pairs carry virtually all of the gravitational binding energy available from the central engine. However, gamma-ray bursters proposed to date are inevitably surrounded by an excess of baryons, leading to the "baryon-loading problem". In the light of growing evidence for neutrino oscillations, we discuss the implications of matter-affected oscillations for GRB energetics, and on the viability of "mirror" stars as GRB progenitors.

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