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Non-LTE Model Atom Construction

Authors
  • Przybilla, Norbert
Type
Published Article
Publication Date
Dec 02, 2010
Submission Date
Dec 02, 2010
Identifiers
DOI: 10.1051/eas/1043008
Source
arXiv
License
Yellow
External links

Abstract

Model atoms are an integral part in the solution of non-LTE problems. They comprise the atomic input data that are used to specify the statistical equilibrium equations and the opacities and emissivities of radiative transfer. A realistic implementation of the structure and the processes governing the quantum-mechanical system of an atom is decisive for the successful modelling of observed spectra. We provide guidelines and suggestions for the construction of robust and comprehensive model atoms as required in non-LTE line-formation computations for stellar atmospheres. Emphasis is given on the use of standard stars for testing model atoms under a wide range of plasma conditions.

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