ABSTRACT A new opacity model has been developed based on the Super-Transition-Array
(STA) method for the calculation of monochromatic opacities of plasmas in local …

The calculation of line widths constitutes theoretical and computational challenges in the
calculation of opacities of hot, dense plasmas. Opacity models use line broadening …

With the aim of solving the decade-old problem of solar opacity, we report substantial
photoabsorption uncertainty due to the effect of ion–ion correlations. By performing detailed …

We present the opacities of iron, aluminum, and bromine plasmas calculated using the
Starrett and Saumon average-atom model allowing for ion correlations. We show that the …

In this article, recent advances concerning the knowledge of solar opacity are presented. We
first review a few laser and Z-pinch iron-opacity measurements performed in France …

We present opacity calculations with the newly developed STAR code, which implements
the Super-Transition-Array (STA), with various improvements. The model is used to calculate …

In hot dense plasmas of intermediate or high-Z elements in the state of local thermodynamic
equilibrium, the number of electronic configurations contributing to key macroscopic …

We present a project dedicated to hot plasma spectroscopy based on a Multi-Configuration
Dirac–Fock (MCDF) code, initially developed by J. Bruneau. The code is briefly described …

Radiative opacity is an important quantity in the modeling of stellar structure and evolution.
In the present work we recall the role of opacity in the interpretation of pulsations of different …

Calculations of accurate opacities in X and XUV range are of high interest for several
domains such as astrophysics or inertial fusion science. Such quantities may be investigated …