천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제36권1호
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- Pages.30.2-30.2
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- 2011
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- 1226-2692(pISSN)
Multi-component dust envelopes around O-rich AGB stars
- Kwon, Young-Joo (Department of Astronomy and Space Science, Chungbuk National University) ;
- Suh, Kyung-Won (Department of Astronomy and Space Science, Chungbuk National University)
- 발행 : 2011.04.05
초록
Dust species in the envelopes around AGB stars would have multiple components rather than a single component. Each dust species may have its own temperature and density structure. We use the radiative transfer code RADMC-3D developed by Dullemond et al. 2011 to model the multi-component dust envelopes around O-rich AGB stars. For reasonable combinations of physical and chemical parameters of the dust envelopes, we use multi-component dust species of silicate, corundum, and water ice. We find that the new model results can explain the observations of O-rich AGB stars better than conventional models.
키워드