Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.221..789g&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 221, Aug. 15, 1986, p. 789-807.
Astronomy and Astrophysics
Astronomy
29
Cosmic Dust, Infrared Astronomy, Stellar Envelopes, Supernovae, Astronomical Models, Echoes, Radiative Transfer, Stellar Mass Ejection, Stellar Winds
Scientific paper
In a previous paper it was established that the infrared radiation observed from supernova 1982e originated from a pre-existing circumstellar dust cloud, and was produced by an echo of the radiation from the supernova. Here a model of the time-dependent radiative transfer within a supernova dust cloud is developed to allow detailed comparison of the data and the model. This analysis further confirms the original conclusion that the infrared emission is due to an echo, and permits the self-consistent derivation of several cloud parameters including the optical depth of the dust cloud and the mass of dust in the cloud. A dusty stellar wind is the most likely source of this cloud. It is argued that an OH/IR star is the most plausible source of such a wind, and a binary star model for the supernova explosion where a white dwarf near the Chandrasekhar limit accretes material from this wind is shown to be viable.
Graham James R.
Meikle Peter S. W.
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