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 Citations (Scopus)

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 2003
Externally publishedYes

Fingerprint

atmospheres
stars
atmosphere
atoms
opacity
trace elements
complement
transition probabilities
free electrons
photoionization
coverings
cross section
energy levels
trace element
electron
ion
cross sections
energy
ions
calculation

Keywords

  • Atomic data
  • Radiative transfer
  • Stars: atmospheres

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Non-LTE model atmospheres for late-type stars. I. A collection of data for light neutral and singly ionized atoms. / Allende Prieto, Carlos; Lambert, David L.; Hubeny, Ivan -; Lanz, Thierry.

In: Astrophysical Journal, Supplement Series, Vol. 147, No. 2, 08.2003, p. 363-368.

Research output: Contribution to journalArticle

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