Correlation effects on fine-structure energy levels and oscillator strengths in Fe X

Details Correlation effects on fine-structure energy levels and oscillator strengths in Fe X Correlation effects on fine-structure energy levels and oscillator strengths in Fe X

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrva..60.2569d&link_type=abstract

Physical Review A (Atomic, Molecular, and Optical Physics), Volume 60, Issue 3, September 1999, pp.2569-2572

Physics

2

Fine And Hyperfine Structure, Oscillator Strengths, Lifetimes, Transition Moments, Atomic And Molecular Data, Spectra, And Spectral Parameters

Scientific paper

Fine-structure energy levels and oscillator strengths (OS's) for some allowed transitions in Fe X are studied using extensive configuration-interaction (CI) wave functions, with relativistic effects incorporated through the Breit-Pauli Hamiltonian. The inclusion of crucial correlation effects arising from the two-electron excitation configurations 3s23p33d2 and 3s3p43d2 in the CI expansion resolves all but two of the energy discrepancies between a recent calculation and experiment. Our OS's agree excellently with the NIST data, but significant disagreements with other calculations call for further investigations.

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