Electron impact excitation of C IV

Francis Keenan, Kanti Aggarwal

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Energy levels and radiative rates for transitions among the lowest 24 fine-structure levels belonging to the ls(2) nl (n <5) configurations of Li-like C IV have been calculated using the fully relativistic GRASP code. Additionally, collision strengths for transitions among these levels have been computed over a wide energy range below 28 Ry, using the Dirac Atomic R- matrix Code. Resonances have been resolved in a fine energy mesh in order to calculate the effective collision strengths. Results for radiative rates, collision strengths, and effective collision strengths are presented for all transitions. Comparisons with other available results are made, and the accuracy of the present data is assessed. Energy levels are expected to be accurate to within 1%, while other parameters are probably accurate to better than 20%.
Original languageEnglish
Pages (from-to)385-397
Number of pages13
JournalPhysica Scripta
Issue number5
Publication statusPublished - May 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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