Three-dimensional surface convection simulations of metal-poor stars - The effect of scattering on the photospheric temperature stratification

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Table 1

Parameters of the 3D hydrodynamic simulations.

⟨ T_eff ⟩ ^a	log g	[Fe/H]	x, y, z-dimensions	Time^b	t_gran^c	t_rad^d
[K]	[cgs]		[Mm]	[h]	[h]	[h]

5140	2.2	−3.0	1150 × 1150 × 430	28	20	3.5
5080	2.2	−2.0	1150 × 1150 × 430	28	20	1.5
6510	4.04	−3.0	21.4 × 21.4 × 8.35	1.3	0.3	0.15

Notes.

^(a)

Temporal average of the emergent effective temperatures.

^(b)

Time span of the simulations.

^(c)

Average granule lifetime.

^(d)

Radiative heating timescale when switching to scattering as true absorption in the upper photosphere.

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