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1995PASP..107..347B - Publ. Astron. Soc. Pac., 107, 347-350 (1995/April-0)
Radio emission from type Ia supernovae as a test of symbiotic-star progenitor systems.
BOFFI F.R. and BRANCH D.
Abstract (from CDS):
To illustrate the nature of the radio emission that might be expected, we predict the radio light curve of SN 1986G in NGC 5128 (Centaurus A) by scaling it against the observed radio light curve of the Type Ib SN 1983N in NGC 5236, a member of the same group of galaxies as NGC 5128. Although the denisty of the circumstellar medium surrounding a symbiotic system is expected to be lower than that surrounding the Type II and Ib/c supernovae from which radio emission has been detected, we find that relatively nearby SNe Ia such as SN 1986G, if they are coming from symbiotic systems, should be detectable by deep early radio observations. The lower density of the circumstellar medium leads to a weaker radio emission at a given time after explosion, but because the lower density reduces the free-free absorption in the circumstellar medium, the radio light curve peaks at an earlier time. Consequently, the peak luminosity does not depend strongly on the density of the circumstellar medium.
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Simbad objects: 15
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