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arXiv · 2010.08489

Cloudy in the microcalorimeter era: improved energies for K$\alpha$ transitions

P. Chakraborty·G. J. Ferland·S. Bianchi·M. Chatzikos
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Abstract

X-ray missions with microcalorimeter technology will resolve spectral features with unprecedented detail. In this work, we improve the H-like K$\alpha$ energies for elements between 6 $\leq Z \leq$ 30 for the release version of the spectral simulation code Cloudy to match laboratory energies. We update the ionization potential ($I_{\rm ion}$) for these elements and add a fourth-order polynomial to the level energy difference. This brings the release version of Cloudy into a near-perfect agreement with NIST. The updated energies are $\sim$ 15-4000 times more precise than that of the current release version of Cloudy (C17.02). These new changes will be a part of the next update to the release version, C17.03.

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P. Chakraborty, G. J. Ferland, S. Bianchi, M. Chatzikos. 2020-10-16. Cloudy in the microcalorimeter era: improved energies for K$\alpha$ transitions. https://arxiv.org/abs/2010.08489

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