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http://dx.doi.org/10.5140/JASS.2006.23.1.011

MODEL DUST ENVELOPES AROUND SILICATE CARBON STARS  

Suh Kyung-Won (Dept. of Astron. & Sapace Science, Chungbuk National University)
Publication Information
Journal of Astronomy and Space Sciences / v.23, no.1, 2006 , pp. 11-18 More about this Journal
Abstract
We have modeled dust envelopes around silicate carbon stars using optical properties for a mixture of amorphous carbon and silicate dust grains paying close attention to the infrared observations of the stars. The 4 stars show various properties in chemistry and location of the dust shell. We expect that the objects that fit a simple detached silicate dust shell model could be in the transition phase of the stellar chemistry. For binary system objects, we find that a mixed dust chemistry model would be necessary.
Keywords
circumstellar matter; stars: AGB and post-AGB; infrared: stars; dust: extinction; radiative transfer;
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