The development of a type II supernova in the case of two successive releases of energy

Details The development of a type II supernova in the case of two successive releases of energy The development of a type II supernova in the case of two successive releases of energy

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991azh....68...85g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 68, Jan.-Feb. 1991, p. 85-100. In Russian.

Astronomy and Astrophysics

Astronomy

1

Gravitational Collapse, Stellar Cores, Stellar Evolution, Supernovae, Light Curve, Stellar Models

Scientific paper

It is suggested that some features of the gravitational collapse of the evolved massive star cores result occasionally in two successive explosive energy releases. For a compact star, the first weak explosion with an energy of 10 to the 49th erg dynamically forms an extended configuration of dimensions comparable to the stars of very large radii, or cool supergiants, and to those embedded in very extended envelopes. A second explosion with an energy of 10 to the 51st erg occurs after a certain period of time. This model helps to explain the presence of matter expanding at high velocity around some supernovae prior to their outbursts.

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