Full evolution of the 6 and 20 centimeter radio emission from SN 1980K

Details Full evolution of the 6 and 20 centimeter radio emission from SN 1980K Full evolution of the 6 and 20 centimeter radio emission from SN 1980K

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...398..248w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 398, no. 1, p. 248-253.

Astronomy and Astrophysics

Astrophysics

50

Radio Emission, Radio Stars, Stellar Evolution, Supernovae, Light Curve, Stellar Mass Ejection, Stellar Models, Stellar Spectra, Supergiant Stars, Very Large Array (Vla)

Scientific paper

Results are presented of observations, made with VLA at 20 and 6 cm in the time period November 1984-December 1990, of the radio emission from SN 1980K in NGC 6946, completing the monitoring of this supernova at these wavelengths, which was started in 1980. It is shown that the emission from SN 1980K is continuing its regular decline in flux density with time. The study of the light curves shows that the data at both wavelengths can be best represented by Chevalier's 'minishell' model for nonthermal emission with external thermal absorption. The best-fit parameters are within the statistical errors from the values obtained by Weiler et al. (1986), indicating that the model is still accurate 10 years after explosion.

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