The effect of radioactivity on the development of a type II supernova outburst

Details The effect of radioactivity on the development of a type II supernova outburst The effect of radioactivity on the development of a type II supernova outburst

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63.1137g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, Nov.-Dec. 1986, p. 1137-1143. In Russian.

Astronomy and Astrophysics

Astronomy

5

Nickel Isotopes, Radioactive Decay, Stellar Flares, Supernovae, Cobalt Isotopes, Iron Isotopes, Light Curve, Neutron Stars, Stellar Envelopes

Scientific paper

The effect of a slow energy release due to 56Ni → 56Co → 56Fe decay on the development of an outburst of type II supernovae (SN II) in the plateau-like phase of their light curves is investigated. The admixture of radioactive 56Ni to matter of the SN II envelopes is shown to make the plateau longer with simultaneous increase in luminosity. The radioactive heating also slows down the cooling of the SN II envelopes which may be of importance for interpreting the supernova spectra. It is emphasized that not only radioactivity but a slow transport of energy from the collapsed stellar remnant (neutron star) to the expanding envelope may be of specific value for a detailed theory of SN II outbursts as well.

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