Fig. 4
Burgess-Tully scaled electron-impact excitation collision strengths for the transition 1 − 10: 3s21S0 − 3p21S0 in Fe14 +. Full line: present R-matrix work; ×: distorted wave calculation with the present structure; □: distorted wave calculation of Landi (2011); ⋄: distorted wave calculation of Christensen et al. (1985); △: distorted wave calculations with autostructure and the atomic structure of Christensen et al. (1985).
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