COMMUNICATIONS / MITTEILUNGEN

G. Marx and J. Németh

The Role of Photoneutrinos in the Evolution of the Stars

No. 52
Budapest, 1962

Abstract

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 109 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.

[PostScript] [PDF]
[Meta-data]