Dynamical Opacity-Sampling Models of Mira Variables. II: Time-Dependent Atmospheric Structure and Observable Properties of 4 M-Type Model Series

Abstract

We present 4 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 model 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 can not drive the winds from O-rich Mira variables.

16 pages, 18 figures, accepted for MNRAS

References in corpus (6)

• 2D Models for Dust-driven AGB Star Winds
• Dynamical Opacity-Sampling Models of Mira Variables. I: Modelling Description and Analysis of Approximations
• Imaging the Radio Photospheres of Mira Variables
• The Keck Aperture Masking Experiment: Multi-Wavelength Observations of 6 Mira Variables
• Inhomogeneities in molecular layers of Mira atmospheres
• The AGB stars of the intermediate-age LMC cluster NGC 1846 Variability and age determination

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