Neutrino-driven Acoustic Wave Instabilities in Proto-Neutron Stars and Gamma-Ray Burst Accretion Flows

Details Neutrino-driven Acoustic Wave Instabilities in Proto-Neutron Stars and Gamma-Ray Burst Accretion Flows Neutrino-driven Acoustic Wave Instabilities in Proto-Neutron Stars and Gamma-Ray Burst Accretion Flows

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.5312b&link_type=abstract

American Astronomical Society Meeting 203, #53.12; Bulletin of the American Astronomical Society, Vol. 35, p.1293

Astronomy and Astrophysics

Astronomy

Scientific paper

We examine the conditions under which a large diffusive neutrino flux can destabilize acoustic and magnetoacoustic waves. The instability mechanism is very similar to that responsible for so-called ``photon bubble instabilities'' in radiation magnetohydrodynamics. If such instabilities occur in nature, they may accelerate the escape of neutrinos from the source, and/or introduce anisotropies in the neutrino emission. Such anisotropies may constitute a mechanism for producing neutron star kicks, and be a significant source of gravitational waves.
This work is supported in part by NSF grant AST-0307657 and UCSB/LANL CARE grant SBB-001A.

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