Preprint Article Version 1 This version is not peer-reviewed

Towards the Provision of Accurate Atomic Data for Neutral Iron

Version 1 : Received: 30 June 2018 / Approved: 3 July 2018 / Online: 3 July 2018 (11:25:13 CEST)

A peer-reviewed article of this Preprint also exists.

Conroy, A.; Ramsbottom, C.; Ballance, C.; Keenan, F. Towards the Provision of Accurate Atomic Data for Neutral Iron. Galaxies 2018, 6, 91. Conroy, A.; Ramsbottom, C.; Ballance, C.; Keenan, F. Towards the Provision of Accurate Atomic Data for Neutral Iron. Galaxies 2018, 6, 91.

Journal reference: Galaxies 2018, 6, 91
DOI: 10.3390/galaxies6030091

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 a sufficiently good structure for neutral iron 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.

Subject Areas

atomic data

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