Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982s%26w....21..406h&link_type=abstract
Sterne und Weltraum, vol. 21, Oct. 1982, p. 406-411. In German.
Astronomy and Astrophysics
Astronomy
Gravitational Collapse, Stellar Evolution, Stellar Models, Supernovae, Thermonuclear Explosions, Black Holes (Astronomy), Elastic Waves, Neutron Stars, Stellar Mass, White Dwarf Stars
Scientific paper
The thermonuclear explosion and gravitational collapse theories of supernova formation are discussed. The former theory envisions a white dwarf whose degenerate internal conditions of high density and low temperature are suitable for supernova explosion, and which obtains the required mass for an explosion by drawing material from a companion star. The added material may cause the star to collapse, resulting in an explosion that destroys the entire star, or it may burn on the star's surface, giving rise to a pressure wave that causes a supernova but leaves a neutron star behind. The Crab Pulsar may exemplify this mechanism. The gravitational theory assumes a very massive star that has gone through the silicon-burning stage and has no energy source to draw upon save gravitational contraction. The contraction causes electrons in the interior to be absorbed, with resulting disappearance of counterbalancing outward pressure and instantaneous collapse. The energy released creates the supernova. This model may explain the formation of black holes.
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