Distorted wave photoionization cross sections for use in NLTE model atmospheres : Ni-Ni10+

Preval, S. P. and Badnell, N. R. (2017) Distorted wave photoionization cross sections for use in NLTE model atmospheres : Ni-Ni10+. Journal of Physics: Conference Series, 875 (3). ISSN 1742-6588

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    Abstract

    Synopsis The Opacity Project is a highly successful venture in which energy levels, oscillator strengths, and photoionization cross sections were calculated for astrophysically important elements up to iron. However, metals heavier than iron are being discovered in stellar atmospheres. The photoionization cross sections for elements and ions not covered by the Opacity Project are usually approximated with hydrogenic formulae. We present a series of valence and inner-shell distorted wave photoioniza-tion cross section calculations for use in model atmosphere calculations covering Ni-Ni10+. We discuss current progress, and future work.