2014/10/14 by A. Chiavassa, Chiavassa, A., B. Freytag +1 · 2 citations
Physics and Astronomy · #Adaptive optics and wavefront sensing #FOS: Physical sciences #Solar and Space Plasma Dynamics #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1410.3868
Proceedings of the conference "Why Galaxies Care About AGB Stars III", Vienna July 28 - August 1, 2014. 10 pages, to appear on ASP Conference Series
arxiv created 2014/10/14 · openalex publication_date 2014/10/14 · arxiv updated 2014/10/16 · openalex created_date 2019/07/30 · openalex updated_date 2026/07/28
Evolved stars are among the largest and brightest stars and they are ideal targets for the new generation of sensitive, high resolution instrumentation that pro- vides spectrophotometric, interferometric, astrometric, and imaging observables. The interpretation of the complex stellar surface images requires numerical simulations of stellar convection that take into account multi-dimensional time-dependent radiation hydrodynamics with realistic input physics. We show how the evolved star simulations are obtained using the radiative hydrodynamics code CO5BOLD and how the accurate observables are computed with the post-processing radiative transfer code Optim3D. The synergy between observations and theoretical work is supported by a proper and quantitative analysis using these simulations, and by strong constraints from the obser- vational side.
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