NLTE effects on Fe I/II in the atmospheres of FGK stars and application to abundance analysis of their spectra

Details NLTE effects on Fe I/II in the atmospheres of FGK stars and application to abundance analysis of their spectra NLTE effects on Fe I/II in the atmospheres of FGK stars and application to abundance analysis of their spectra

2011-09-12

arxiv.org/abs/1109.2601v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, to be published in IOP The Journal of Physics: Conference Series, proceedings of the Workshop: 'Stellar Atmospheres i

Scientific paper

We describe the first results from our project aimed at large-scale calculations of NLTE abundance corrections for important astrophysical atoms and ions. In this paper, the focus is on Fe which is a proxy of stellar metallicity and is commonly used to derive effective temperature and gravity. We present a small grid of NLTE abundance corrections for Fe I lines and discuss how NLTE effects influence determination of effective temperature, surface gravity, and metallicity for late-type stars.

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