Papers › A novel analytic atmospheric T(τ) relation for stellar models
A novel analytic atmospheric T(τ) relation for stellar models
Warrick H. Ball
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Stellar models often use relations between the temperature T and optical depth τ to evaluate the structure of their optically-thin outer layers. We fit a novel analytic function to the Hopf function q(τ) of a radiation-coupled hydrodynamics simulation of near-surface convection with solar parameters by Trampedach et al. (2014). The fit is accurate to within 0.82 per cent for the solar simulation and to within 13 per cent for all the simulations that are not on either the low-temperature or low-gravity edges of the grid of simulations.
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