In hot plasmas, such as the ones encountered in astrophysics or laser-fusion studies, the
number of ionic excited states may become huge, and the relevant electron configurations …

A formula for supershell partition functions, which play a major role in the Super Transition
Array approach to radiative-opacity calculations, is derived as a functional of the distribution …

Abstract In the Super-Transition-Array statistical method for the computation of radiative
opacity of hot dense matter, the moments of the absorption or emission features involve …

The distributions $ P (M_L, M_S) $ of the total magnetic quantum numbers $ M_L $ and $
M_S $ for $ N $ electrons of angular momentum $\ell $, as well as the enumeration of $ LS …

We propose approximate and accurate formulas for the number of electron configurations in
hot plasmas. Such a quantity is an ingredient of algorithms devoted to the generation of …