A model for Supernova 1993J

Details A model for Supernova 1993J A model for Supernova 1993J

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281l..53b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 1, p. L53-L55

Astronomy and Astrophysics

Astrophysics

35

Light Curve, Stellar Envelopes, Stellar Models, Supernovae, Astronomical Photometry, Giant Stars, Hydrogen, Nickel Isotopes, Radii, Stellar Mass, Stellar Winds

Scientific paper

We test a 'type II-b' model for SN 1993J and present computations of its light curve (bolometric and in B, V bands). A good fit to first 50 days of the observed blue light curve gives the model involving an explosion of a giant with a mass 4.4 solar mass and a radius approximately 200 solar radii with energy 2 x 1051 erg. The mass of hydrogen (approximately 1 solar mass) is typical for SNe II-L and the mass of Ni-56 is the same as in SN 1987 A. In our model the explosion epoch is in the interval March 28.0 - 28.2. We study the effects of a circumstellar envelope, formed by the presupernova superwind, upon the light curve.

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