Effective collision strengths for transitions in Fe XV

Francis Keenan, Kanti Aggarwal, A.Z. Msezane

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Collision strengths for transitions among the energetically lowest 53 fine-structure levels belonging to the (1s(2)2s(2)2p(6)) 3l(2), 3l3l', 3s4l and 3p4s configurations of Fe XV are computed, over an electron energy range below 160 Ryd, using the Dirac Atomic R-matrix Code (DARC) of Norrington & Grant (2003). Effective collision strengths, obtained after integrating the collision strengths over a Maxwellian distribution of electron energies, have also been calculated. These results of effective collision strengths are tabulated for all 1378 inelastic transitions over a wide temperature range of 10(5) to 10(7) K. Comparisons are also made with other R-matrix calculations and the accuracy of the results is assessed.
Original languageEnglish
Pages (from-to)349-358
Number of pages10
JournalAstronomy and Astrophysics
Volume410
Issue number1
Publication statusPublished - Oct 2003

ASJC Scopus subject areas

  • Space and Planetary Science

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