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Galaxies 2018, 6(3), 91; https://doi.org/10.3390/galaxies6030091

Towards the Provision of Accurate Atomic Data for Neutral Iron

1
Centre for Theoretical Atomic, Molecular and Optical Physics, Queen’s University Belfast, University Road, Belfast BT7 1NN, UK
2
Astrophysics Research Centre, Queen’s University Belfast, University Road, Belfast BT7 1NN, UK
*
Author to whom correspondence should be addressed.
Received: 30 June 2018 / Revised: 8 August 2018 / Accepted: 21 August 2018 / Published: 25 August 2018
(This article belongs to the Special Issue Atomic and Molecular Data Needs for Astronomy and Astrophysics)
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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. View Full-Text
Keywords: atomic data; iron; oscillator strengths atomic data; iron; oscillator strengths
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Conroy, A.; Ramsbottom, C.; Ballance, C.; Keenan, F. Towards the Provision of Accurate Atomic Data for Neutral Iron. Galaxies 2018, 6, 91.

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