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The Stagger-grid: A grid of 3D stellar atmosphere models

2014
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Astronomy and Astrophysics
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We investigate the relation between 1D atmosphere models that rely on the mixing length theory and models based on full 3D radiative hydrodynamic (RHD) calculations to describe convection in the envelopes of late-type stars. The adiabatic entropy value of the deep convection zone, s_bot, and the entropy jump, {\Delta}s, determined from the 3D RHD models, are matched with the mixing length parameter, {\alpha}_MLT, from 1D hydrostatic atmosphere models with identical microphysics (opacities and

doi:10.1051/0004-6361/201423760
fatcat:6yboqdm4lfgq5dyapirrk5uedy