Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.146..375c&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 146, no. 2, July 1988, p. 375-388.
Astronomy and Astrophysics
Astrophysics
10
Emission Spectra, Radioactive Decay, Supernovae, Cobalt Isotopes, Forbidden Bands, H Alpha Line, Iron Isotopes, Nickel Isotopes, Stellar Winds
Scientific paper
A one-zone model for the late time SN II energized by the radioactive decay 56Ni-56Co-56Fe is presented. The model succeeds in reproducing for the late time evolution of Hα and [O I] λ6300 emission lines in SN 1970g for the reasonable set of parameters. However, the model does not account for the late time continuum. In the case of SN 1980k the radioactive model fits Hα and [O I] λ6300 emissions at t ≈ 250 day satisfactory but fails at very late time, e.g., t = 670 d. It is suggested that the strong Hα emission in SN 1980k on the 670th day is due to the interaction of the supernova envelope with the pre-SN wind.
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