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Assessment of the fluorescence and auger database used in plasma modeling

Gorczyca, T.W. and Kodituwakku, C.N. and Korista, K.T. and Zatsarinny, O. and Badnell, N.R. and Behar, E. and Chen, M.H. and Savin, D.W. (2003) Assessment of the fluorescence and auger database used in plasma modeling. Astrophysical Journal, 592 (1). pp. 636-643. ISSN 0004-637X

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Abstract

We have investigated the accuracy of the vacancy fluorescence database of Kaastra & Mewe resulting from the initial atomic physics calculations and the subsequent scaling along isoelectronic sequences. In particular, we have focused on the relatively simple Be- and F-like vacancy sequences. We find that the earlier atomic physics calculations for the oscillator strengths and autoionization rates of singly charged B ii and Ne ii are in sufficient agreement with our present calculations. However, the substantial charge dependence of these quantities along each isoelectronic sequence, the incorrect configuration averaging used for B ii, and the neglect of spin-orbit effects (which become important at high Z) all cast doubt on the reliability of the Kaastra & Mewe data for application to plasma modeling.