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Table 3

Sequence of 3D simulations with alternative parameters.

Description log g shift

A) Surface area Axy = 1.56  Axy,0 0.00
B) Vertical grid points nz = 2/3 nz,0 0.00
C) log τmax = 0.93log τmax,0 –0.01
D) Top layer inflow T = 1.1 × T0 0.00
E) Van Leer slope limiter –0.00
F) Piecewise Parabolic reconstruction –0.02
G) Artificial viscosity 0.00

H) 2D calculation 0.06

I) Original opacity table (Ludwig et al. 1994) 0.03

Notes.All models with Teff ~ 10   000 K and log g = 8. The subscript 0 refers to the standard model parameters.

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