Development of the lambda extinction feature in posteruptive novae

Details Development of the lambda extinction feature in posteruptive novae Development of the lambda extinction feature in posteruptive novae

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...254..263b&link_type=abstract

Astrophysical Journal, Part 1, vol. 254, Mar. 1, 1982, p. 263-270. Research supported by the Science Research Council.

Astronomy and Astrophysics

Astronomy

3

Novae, Sputtering, Stellar Envelopes, Stellar Mass Ejection, Stellar Models, Ultraviolet Spectra, Carbon Stars, Graphite, Iue, Spaceborne Astronomy, T Tauri Stars, Wolf-Rayet Stars

Scientific paper

We describe the changes in the 2200-A graphite feature that might be expected to occur in classical novae during the posteruptive period. Four models are considered, including the rapid grain formation model of Clayton and Wickramasinghe (1976), and three variants of the preexisting grain model of Bode and Evans (1980). The present results suggest that these models could easily be distinguished using the IUE satellite or similar facility, and that the detailed form of the 2200-A feature could be an accurate guide to grain size in circumstellar shells. The models developed have applications to a wide variety of objects, including the dust-forming Wolf-Rayet star HD 193793, carbon stars, and T Tauri stars.

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