Physics
Scientific paper
Dec 1972
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972pthph..48.1870i&link_type=abstract
Progress of Theoretical Physics, Vol. 48, No. 6, pp. 1870-1884
Physics
24
Scientific paper
As a continuation of the preceding paper, the evolution of carbon-oxygen stars of 1.5M&sun; and 2.6M&sun; has been computed from a pre-carbon-burning stage to a pre-supernova stage for the two alternative cases, with and without neutrino loss. In the case without neutrinos, it has been found that after the termination of central carbon-burning electrons become degenerate at the center and both neon-burning and siliconburning begin as strong flashes. Finally, both of the stars become dynamically unstable on account of the photo-disintegration of iron. In the case with neutrinos, the inversion of temperature gradient occurs in stages after central carbon-burning. This is due to the effect of neutrino loss coupled with the effect of electron degeneracy. Finally, the 1.5M&sun; star and the 2.6M&sun; star become unstable on account of the inverse-beta process of silicon and the photo-disintegration of iron, respectively.
Hayashi Chuichiro
Hōshi Reiun
Ikeuchi Satoru
Murai Tadayuki
Nakazawa Kazuhiro
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