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

Collet, R; Hayek, Wolfgang; Asplund, Martin; Nordlund, A; Trampedech, Regner; Gudiksen, B

Description

Context: Three-dimensional (3D) radiative hydrodynamic model atmospheres of metal-poor late-type stars are characterized by cooler upper photospheric layers than their one-dimensional counterparts. This property of 3D model atmospheres can dramatically affect the determination of elemental abundances from temperature-sensitive spectral features, with profound consequences on galactic chemical evolution studies. Aims. We investigate whether the cool surface temperatures predicted by 3D model...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/39131
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201016151

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