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arXiv · 1311.7429

The Hybrid Detailed / Statistical Opacity Code SCO-RCG: New Developments and Applications

Jean-Christophe Pain·Franck Gilleron·Quentin Porcherot·Thomas Blenski
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Abstract

We present the hybrid opacity code SCO-RCG which combines statistical approaches with fine-structure calculations. Radial integrals needed for the computation of detailed transition arrays are calculated by the code SCO (Super-configuration Code for Opacity), which calculates atomic structure at finite temperature and density, taking into account plasma effects on the wave-functions. Levels and spectral lines are then computed by an adapted RCG routine of R. D. Cowan. SCO-RCG now includes the Partially Resolved Transition Array model, which allows one to replace a complex transition array by a small-scale detailed calculation preserving energy and variance of the genuine transition array and yielding improved high-order moments. An approximate method for studying the impact of strong magnetic field on opacity and emissivity was also recently implemented.

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Jean-Christophe Pain, Franck Gilleron, Quentin Porcherot, Thomas Blenski. 2013-11-28. The Hybrid Detailed / Statistical Opacity Code SCO-RCG: New Developments and Applications. https://doi.org/10.1063/1.4975753

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