Comment on "Electron collisional excitation of argon-like Ni XI using the Breit-Pauli R-matrix method" [Eur. Phys. J. D 42, 235-241 (2007)] - Electron impact excitation of Ni XI

Kanti Aggarwal, Francis Keenan

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

In a recent paper, Verma et al. [Eur. Phys. J. D 42, 235 (2007)] have reported results for energy levels, radiative rates, collision strengths, and effective collision strengths for transitions among the lowest 17 levels of the (1s(2)2s(2)2p(6))3s(2)3p(6), 3s(2)3p(5)3d and 3s3p(6)3d configurations of Ni XI. They adopted the CIV3 and R-matrix codes for the generation of wavefunctions and the scattering process, respectively. In this paper, through two independent calculations performed with the fully relativistic DARC (along with GRASP) and FAC codes, we demonstrate that their results are unreliable. New data are presented and their accuracy is assessed.
Original languageEnglish
Pages (from-to)205-213
JournalEuropean Physical Journal D
Volume46
Early online date24 Oct 2007
DOIs
Publication statusPublished - Feb 2008

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Atomic and Molecular Physics, and Optics

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