期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 418, 期 1, 页码 114-128出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2011.19469.x
关键词
stars: AGB and post-AGB; stars: atmospheres; stars: mass-loss; stars: variables: general
资金
- Australian Research Council [DP1095368]
- Australian Research Council [DP1095368] Funding Source: Australian Research Council
We present four model series of the CODEX dynamical opacity-sampling models of Mira variables with solar abundances, designed to have parameters similar to o Cet, R Leo and R Cas. We demonstrate that the CODEX models provide a clear physical basis for the molecular shell scenario used to explain interferometric observations of Mira variables. We show that these models generally provide a good match to photometry and interferometry at wavelengths between the near-infrared and the radio, and make the model outputs publicly available. These models also demonstrate that, in order to match visible and infrared observations, the Fe-poor silicate grains that form within 3 continuum radii must have small grain radii and therefore cannot drive the winds from O-rich Mira variables.
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