Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.1710b&link_type=abstract
American Astronomical Society, 187th AAS Meeting, #17.10; Bulletin of the American Astronomical Society, Vol. 27, p.1309
Astronomy and Astrophysics
Astronomy
Scientific paper
We have started a systematic study of the radio emission from supernovae exploding in binary systems. Here we present our results for a Type II supernova exploding in a detached binary system. We have considered various system separations and different opening angles of the ``double--funnel'' structure produced by the interaction of the stellar winds in the pre--supernova stage, and we have modeled the radio emission for both pole on and equator on systems. In particular, when we look at the system from the pole, we find that, for all opening angles, at early times the light curves are strongly dependent on the system separation and rise more gradually than in the case of a single star, at late times the emission originating from the compressed wind dominates the light curves. The density enhancement due to companion wind compression is such that in all cases the asymptotic emission mimicks the emission produced in a single-star explosion with a pre--supernova stellar wind much stronger than the actual one.
Boffi Francesca R.
Panagia Nino
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