Recent advances in the determination of atomic parameters for modeling K lines in cosmically abundant elements

摘要

Over the last several years, our group has undertaken a systematic investigation of atomic properties of K-vacancy states in many ions. More precisely, reliable data such as level energies, wavelengths, Einstein A-coefficients, radiative and Auger widths were computed for a large number of ions using three different atomic structure theoretical approaches, i.e. relativistic Hartree-Fock (HFR), AUTOSTRUCTURE (AS) and multiconfiguration Dirac-Fock (MCDF) methods. Extensive calculations of photoabsorption and photoionization cross sections were also performed using the Breit-Pauli R-matrix method including the effects of radiative and Auger damping by means of an optical potential. Here, we report on our overall progress concerning N, O, Ne, Mg, Al, Si, S, Ar, Ca, Fe and Ni ions.