Importance of configuration interaction for accurate atomic data: Fluorescence yields of K-shell vacancy, lithium-like ions

T. W. Gorczyca, I. Dumitriu, M.F. Hasoglu, K.T. Korista, N.R. Badnell, D.W. Savin, S.T. Manson

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Abstract

We demonstrate that the inclusion of configuration interaction (CI) results in significant values for the K-shell fluorescence yields of Li-like ions, which are zero in a single-configuration approach. Modeling codes for simulating supernova remnants under nonequilibrium ionization conditions or photoionized plasmas such as active galactic nuclei or X-ray binaries need to be updated accordingly. A two-parameter fitting formula for the fluorescence yields has been developed. The generality of important CI effects on atomic calculations is pointed out.

Original languageEnglish
Pages (from-to)L121-L124
Number of pages4
JournalAstrophysical Journal
Volume638
Issue number2
DOIs
Publication statusPublished - 20 Feb 2006

Keywords

  • atomic data
  • atomic processes
  • line : formation
  • X-rays
  • dielectronic satellite spectra
  • resonant transfer excitation
  • X-ray emission
  • cross sections
  • recombination
  • photoionization
  • ionization
  • photoabsorption
  • plasma
  • lines

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