Towards the Provision of Accurate Atomic Data for Neutral Iron

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Abstract

The rich emission and absorption line spectra of Fe I may be used to extract crucial information on astrophysical plasmas, such as stellar metallicities. There is currently a lack, in quality and quantity, of accurate level-resolved effective electron-impact collision strengths and oscillator strengths for radiative transitions. Here, we discuss the challenges in obtaining an accurate model of the neutral iron atom and compare our theoretical fine-structure energy levels with observation for several increasingly large models. Radiative data is presented for several transitions for which the atomic data is accurately known.
Original languageEnglish
Article number91
Number of pages6
JournalGalaxies
Volume6
Issue number3
DOIs
Publication statusPublished - 25 Aug 2018

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