Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sva....19..554s&link_type=abstract
(Astronomicheskii Zhurnal, vol. 52, Sept.-Oct. 1975, p. 911-919.) Soviet Astronomy, vol. 19, no. 5, 1976, p. 554-559. Translati
Astronomy and Astrophysics
Astrophysics
2
Light Curve, Pulsars, Stellar Radiation, Supernovae, X Ray Sources, Astrophysics, Shock Wave Propagation, Stellar Envelopes, Supergiant Stars
Scientific paper
It is shown that the conception of a shock wave passing through the extended envelope of a red supergiant cannot explain supernova light curves. A hypothesis is developed for explaining the light curves in terms of pumping of energy into an envelope by hard X-radiation from a young pulsar. A model for the source of such emission is constructed which results in the frequency drift of the spectral-distribution maximum. It is shown that the light curves of both type I and type II supernovae should obey a power law whereby luminosity varies as the -2.5 power of time. It is suggested that the ionization of hydrogen (and possibly helium) in supernova envelopes is caused by a flux of relativistic protons produced by a young pulsar. It is concluded that there is no essential difference between the two types of supernovae.
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