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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.

    Item type: Article
    ID code: 5833
    Keywords: atomic data, atomic processes, X-rays, fluorescence, auger database, plasma modeling, plasma, Plasma physics. Ionized gases, Astronomy and Astrophysics, Space and Planetary Science
    Subjects: Science > Physics > Plasma physics. Ionized gases
    Department: Faculty of Science > Physics
    Related URLs:
    Depositing user: Miss Darcy Spiller
    Date Deposited: 15 Apr 2008
    Last modified: 05 Sep 2014 13:25
    URI: http://strathprints.strath.ac.uk/id/eprint/5833

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