Sources of energy in red giants with neutron core

Details Sources of energy in red giants with neutron core Sources of energy in red giants with neutron core

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978afz....14..257o&link_type=abstract

(Astrofizika, vol. 14, May 1978, p. 257-261.) Astrophysics, vol. 14, no. 2, Dec. 1978, p. 146-148. Translation.

Astronomy and Astrophysics

Astrophysics

Neutron Stars, Nuclear Reactions, Red Giant Stars, Stellar Evolution, Contraction, Electron Capture, Stellar Envelopes, Stellar Mass Accretion

Scientific paper

Energy release by the evaporation of neutrons from nuclei in red giants with degenerate neutron cores is analyzed. Stellar contraction resulting from accretion onto a neutron star is examined, and thermonuclear fusion leading to the formation of magnesium is considered. It is shown that evaporation of neutrons initially transforms 1.927 MeV/n of energy into heat. The total energy released in a subsequent chain of thermonuclear and pycnonuclear reactions is estimated to be 3.32 MeV/n, which is comparable to the energy of magnesium synthesis.

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