Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...364..611w&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 364, Dec. 1, 1990, p. 611-625.
Astronomy and Astrophysics
Astronomy
130
Radio Astronomy, Radio Emission, Radio Sources (Astronomy), Stellar Radiation, Supernovae, Light Curve, Radio Observation, Radio Spectra, Very Large Array (Vla)
Scientific paper
Extensive new radio observations for May 1986 through December 1988 at five VLA wavelengths are presented for the luminous radio supernova SN 1979C. Almost 100 measurements of the source are analyzed and found to be poorly described by the external, thermal absorbing screen model which has been successful for all previously known radio SNe. A slightly more complex model allowing for the possibility of mixed thermal absorbers and nonthermal emitters describes the overall properties of the radio emission quite well. The implications of the data for the mass loss from the presupernova star, the ejected mass in the explosion, and the probable main-sequence mass of the progenitor star are discussed. It is concluded that SN 1986J represents a relatively rare subclass of type II SNe produced by massive progenitors.
Panagia Nino
Sramek Richard A.
Weiler Kurt W.
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