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Figure 1: Comparison of A-values (s-1) for K transitions in Fe XXIV computed with approximations AST1 and AST2. Differences are due to the Breit interaction. |
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Figure 2: Comparison of AUTOSTRUCTURE A-values (s-1) for K transitions in Fe XXIV with other approximations and external data sets. a) AST1 with: HFR2 (triangles); COR (filled circles); SAF (circles); and MCDF (filled triangles). b) AST3 with: HFR3 (triangles); COR (filled circles); SAF (circles); and MCDF (filled triangles). |
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Figure 3: Comparison of Auger rates (s-1) for K-vacancy levels of Fe XXIV computed with approximations AST1 and AST2. Differences are due to the Breit interaction. |
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Figure 4: Comparison of AUTOSTRUCTURE Auger rates (s-1) for K-vacancy levels in Fe XXIV with previous data sets. a) AST1 with: COR (filled circles); SAF (circles); and MCDF (filled triangles). b) AST3 with: COR (filled circles); SAF (circles); and MCDF (filled triangles). |
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Figure 5: Comparison of electron impact collision strengths for K-shell excitation in Fe XXIV computed with the BPRM method. The left panels depict collision strengths for the 1-8 and 1-14 transitions computed without damping. The effects of radiation and spectator Auger dampings can be appreciated in the middle and right panels, respectively. |
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Figure 6: Comparison of electron impact effective collision strengths using the reduced scales of Burgess & Tully (1992) (see Sect. 10). Squares: distorted-wave data by Bely-Dubau et al. (1982). Filled circles: Coulomb-Born-Exchange data of Goett et al. (1984). Filled triangles: BPRM calculation by Whiteford et al. (2002). Filled squares: present BPRM results. The discrepancies between the BPRM results at low temperatures are believed to be due to different target representations. |
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Figure 7: Total photoabsorption cross section of the ground state of Fe XXIII. The upper panel a) depicts the cross section computed including radiative and spectator-Auger damping effects. The lower panel b) shows the same cross section when these effects are neglected for resonances with n>2. |
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Figure 8: Comparison between the a) photoabsorption cross section and the b) photoionization cross section of the ground state of Fe XXIII computed with AUTOSTRUCTURE assuming Lorentzian resonance profiles. |
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Figure 9: Partial photoionization cross sections from the ground level of Fe XXIII leaving Fe XXIV in a K-vacancy state. |
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