Shock structure and neutrino radiation in stellar collapse

Details Shock structure and neutrino radiation in stellar collapse Shock structure and neutrino radiation in stellar collapse

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...221l..83b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 221, Apr. 15, 1978, p. L83-L86.

Astronomy and Astrophysics

Astrophysics

8

Gravitational Collapse, Neutrinos, Shock Fronts, Stellar Radiation, Supernovae, Particle Motion, Viscosity

Scientific paper

Neutrino transport through a shock front in the context of a collapsing stellar core is carefully considered. We show (1) that the neutrino transport produces negligible shock broadening and that the shock width is therefore microscopic; and (2) that numerical stellar collapse calculations using a pseudoviscosity can thus seriously underestimate the neutrino flux across the shock unless unusually fine zoning is used in the shock region. This increased neutrino flux should yield the sought-for stress necessary to produce a supernova explosion.

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