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Fig. 7
The ratio of the effective collision strengths Υ for all core-excitations in Fe23+ between the present ICFT R-matrix and Breit-Pauli DW (autostructure) calculations at the temperature of 2.0 × 105 and 2.0 × 107 K. The filled and dashed regions correspond to a agreement of 20% and a factor 2, respectively. [Colour online]
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