The Role of Photoneutrinos in the Evolution of the Stars

Details The Role of Photoneutrinos in the Evolution of the Stars The Role of Photoneutrinos in the Evolution of the Stars

Jan 1962

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962cokon..52....1m&link_type=abstract

Communications of the Konkoly Observatory, No. 52 (Vol. IV, 10), p. 1-12 (1962)

Astronomy and Astrophysics

Astrophysics

1

Neutrino Astrophysics, Stars: Evolution

Scientific paper

During the stellar evolution, after being exhausted a certain type of thermonuclear reaction, a gravitational contraction follows, usually with an increase of the central temperature. Arriving at the temperature 3-5 x 10E9 K all nuclear energy sources are exhausted, the star becomes a victim of a supernova explosion. A cooling of the centre, however, can be guaranteed by means of the transformation of the thermal radiation into neutrinos, so the supernova fate can be prevented for a wide class of stars. Here the photoneutrino-pair transmutation in the plasma (in the Coulomb-field of nuclei) is treated. The influence of the degeneracy of electron gas is discussed separately.

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