FeX-FeXVII fine-structure K-vacancy levels (Mendoza+, 2004)

Details FeX-FeXVII fine-structure K-vacancy levels (Mendoza+, 2004) FeX-FeXVII fine-structure K-vacancy levels (Mendoza+, 2004)

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..34140377m&link_type=abstract

VizieR On-line Data Catalog: J/A+A/414/377. Originally published in: 2004A&A...414..377M

Physics

Atomic Physics

Atomic Physics

Scientific paper

We report extensive calculations of the decay properties of fine-structure K-vacancy levels in Fe X-Fe XVII. A large set of level energies, wavelengths, radiative and Auger rates, and fluorescence yields has been computed using three different standard atomic codes, namely Cowan's HFR, AUTOSTRUCTURE and the Breit-Pauli R-matrix package. This multi-code approach is used to the study the effects of core relaxation, configuration interaction and the Breit interaction, and enables the estimate of statistical accuracy ratings. The K-alpha and KLL Auger widths have been found to be nearly independent of both the outer-electron configuration and electron occupancy keeping a constant ratio of 1.53+/-0.06. By comparing with previous theoretical and measured wavelengths, the accuracy of the present set is determined to be within 2m{AA}. Also, the good agreement found between the different radiative and Auger data sets that have been computed allow us to propose with confidence an accuracy rating of 20% for the line fluorescence yields greater than 0.01. Emission and absorption spectral features are predicted finding good correlation with measurements in both laboratory and astrophysical plasmas.
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