Open AccessAssessment of the Fluorescence and Auger DataBase Used in Plasma Modeling
Author(s) -
T. W. Gorczyca,
C. N. Kodituwakku,
K. T. Korista,
Oleg Zatsarinny,
N. R. Badnell,
E. Behar,
M. H. Chen,
D. W. Savin
Publication year - 2003
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/375561
Subject(s) - autoionization , vacancy defect , atomic physics , auger , scaling , plasma , physics , ion , chemistry , ionization , nuclear physics , quantum mechanics , nuclear magnetic resonance , photoionization , geometry , mathematics
We have investigated the accuracy of the 1s-vacancy fluorescence data base ofKaastra & Mewe (1993, A&AS, 97, 443) resulting from the initial atomic physicscalculations and the subsequent scaling along isoelectronic sequences. Inparticular, we have focused on the relatively simple Be-like and F-like1s-vacancy sequences. We find that the earlier atomic physics calculations forthe oscillator strengths and autoionization rates of singly-charged B II and NeII are in sufficient agreement with our present calculations. However, thesubstantial charge dependence of these quantities along each isoelectronicsequence, the incorrect configuration averaging used for B II, and the neglectof spin-orbit effects (which become important at high-Z) all cast doubt on thereliability of the Kaastra & Mewe data for application to plasma modeling.Comment: 19 pages with 6 figures, AAS TeX, accepted for publication in Ap
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