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Multi-level 3D non-LTE Computations of Lithium Lines in the Metal-poor Halo Stars HD 140283 and HD 84937

Asplund, Martin; Carlsson, M.; Botnen, A.

Description

The lithium abundances in metal-poor halo stars are of importance for cosmology, galaxy evolution and stellar structure. In an attempt to study possible systematic errors in the derived Li abundances, the line formation of Li I lines has been investigated by means of realistic 3D hydrodynamical model atmospheres of halo stars and 3D non-LTE radiative transfer calculations. These are the first detailed 3D non-LTE computations reported employing a multi-level atomic model showing that such...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/88011
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361:20030080

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