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arXiv · 0809.2939

Radiation-hydrodynamics simulations of surface convection in low-mass stars: connections to stellar structure and asteroseismology

Hans-G. Ludwig·Elisabetta Caffau·Arunas Kucinskas
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Abstract

Radiation-hydrodynamical simulations of surface convection in low-mass stars can be exploited to derive estimates of i) the efficiency of the convective energy transport in the stellar surface layers; ii) the convection-related photometric micro-variability. We comment on the universality of the mixing-length parameter, and point out potential pitfalls in the process of its calibration which may be in part responsible for the contradictory findings about its variability across the Hertzsprung-Russell digramme. We further comment on the modelling of the photometric micro-variability in HD49933 - one of the first main COROT targets.

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Hans-G. Ludwig, Elisabetta Caffau, Arunas Kucinskas. 2008-09-17. Radiation-hydrodynamics simulations of surface convection in low-mass stars: connections to stellar structure and asteroseismology. https://doi.org/10.1017/s1743921308022473

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