Non-LTE model atmospheres for late-type stars. I. A collection of data for light neutral and singly ionized atoms

Carlos Allende Prieto, David L. Lambert, Ivan Hubeny, Thierry Lanz

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

With the goal of producing a reliable set of model atoms and singly ionized ions for use in building NLTE model atmospheres, we have combined measured energy levels, critically compiled line transition probabilities, and resonance-averaged calculations of photoionization cross sections. A majority of the elements from Li to Ca are considered, covering most of the important species in late-type atmospheres. These include elements that contribute free electrons and/or continuous opacity in the ultraviolet (e.g., Mg and Si), as well as trace elements whose abundance determinations rely on ultraviolet lines (e.g., B from B I lines). The new data complement and, for the species in common, supersede a previous collection of model atoms originally designed for use in studies of early-type stars.

Original languageEnglish (US)
Pages (from-to)363-368
Number of pages6
JournalAstrophysical Journal, Supplement Series
Volume147
Issue number2
DOIs
StatePublished - Aug 1 2003

Keywords

  • Atomic data
  • Radiative transfer
  • Stars: atmospheres

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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