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On the number of atomic configurations in hot plasmas
Published 16 Jan 2025 in physics.atom-ph and physics.plasm-ph | (2501.09443v1)
Abstract: 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 configurations or superconfigurations, which is a pre-requisite of opacity calculations. One of the main formulas involves Bessel functions of fractional order and the procedure for improving the accuracy through a series expansion is explained.
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