EXTENDED CALCULATIONS with SPECTROSCOPIC ACCURACY: ENERGY LEVELS and TRANSITION PROPERTIES for the FLUORINE-LIKE ISOELECTRONIC SEQUENCE with Z = 24-30

R. Si, S. Li, X. L. Guo, Z. B. Chen, T. Brage, P. Jönsson, K. Wang, J. Yan, C. Y. Chen, Y M Zou

Research output: Contribution to journalArticlepeer-review

Abstract

We have performed extensive multiconfiguration Dirac-Hartree-Fock calculations and second-order many-body perturbation calculations for F-like ions with Z = 24-30. Energy levels and transition rates for electric dipole (E1), electric-quadrupole (E2), electric-octupole (E3), magnetic dipole (M1), and magnetic-quadrupole (M2) transitions, as well as radiative lifetimes, are provided for the lowest 200 levels belonging to the 1s22s22p5, 1s22s22p6, 1s22s22p43l, 1s22s2p23l, 1s22p63l, and 1s22s22p44l configurations of each ion. The results from the two sets of calculations are in excellent agreement. Extensive comparisons are also made with other theoretical results and observed data from the CHIANTI and NIST databases. The present energies and wavelengths are believed to be accurate enough to aid line identifications involving the n = 3 and n = 4 configurations, for which observations are largely missing. The calculated wavelengths and transition data will be useful in the modeling and diagnostics of astrophysical and fusion plasmas.

Original languageEnglish
Article number16
JournalAstrophysical Journal, Supplement Series
Volume227
Issue number2
DOIs
Publication statusPublished - 2016 Dec 1

Subject classification (UKÄ)

  • Astronomy, Astrophysics and Cosmology
  • Atom and Molecular Physics and Optics

Free keywords

  • atomic data
  • atomic processes

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