A Model Analysis of the Infrared Data of Late Type Stars Surrounded by the Circumstellar Dust Envelopes(Proceedings of the Workshop on the Activities and Ejecta of Supergiant Stars)
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A lot of model infrared spectral energy distributions of the oxygen-rich late type stars surrounded by the circumstellar dust envelopes are calculated by solving the radiative transport equations in the spherical dust envelope with various model input parameters. Using IRAS photometric data at 12,25 and 60μm and the strength of the silicate band feature at 10μm from LRS spectra the best fit model is searched for each IRAS oxygen-rich evolved star with the circumstellar dust envelope. It is found that those objects are divided into two groups which are clearly separated by the mass loss rate and the grain formation temperature.
- 東北大学の論文
- 1992-01-31
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