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

• Published in: Journal of electron spectroscopy and related phenomena Vol. 184; no. 3; pp. 170 - 173
• Main Authors: Quinet, P., Palmeri, P., Mendoza, C., Bautista, M.A., Garcia, J., Witthoeft, M.C., Kallman, T.R.
• Format: Journal Article Web Resource
• Language: English
• Published: Elsevier B.V 01.04.2011; Elsevier Science
• Subjects: Aluminum; Atomic processes; Atomic properties; Auger rates; Augers; Iron; K-lines; Magnesium; Nickel; Photoionization; Physical, chemical, mathematical & earth Sciences; Physics; Physique; Physique, chimie, mathématiques & sciences de la terre; Radiative rates; Radiative rates; Auger rates; Photoionization; Atomic processes; K-lines
• ISSN: 0368-2048; 1873-2526
• DOI: 10.1016/j.elspec.2010.12.027

▶ Extensive and systematic investigations of atomic properties of K-vacancy states in many ions have been performed. ▶ A large amount of new radiative and non radiative rates together with photoionization and photoabsorption cross sections have been obtained. ▶ Here we report on our overall progress concerning N, O, Ne, Mg, Al, Si, S, Ar, Ca, Fe and Ni ions. 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.