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A Complete Set of Radiative and Auger Rates for K-vacancy States in Fe XVIII-Fe-XXVA complete set of level energies, wavelengths, A-values, and total and partial Auger rates have been computed for transitions involving the K-vacancy states within the n = 2 complex of Fe XVIII-Fe XXV. Three different standard numerical packages are used for this purpose, namel y AUTOSTRUCTURE, the Breit-Pauli R-matrix suite (BPRM) and HFR, which allow reliable estimates of the physical effects involved and of the accuracy of the resulting data sets. The Breit interaction is taken i nto account because its contributions to the small A-values and partial Auger rates cannot be neglected with increasing electron occupancy. Semiempirical adjustments can also lead to large differences in both the radiative and Auger decay data of strongly mixed levels. Several experimental level energies and wavelengths are questioned, and significant discrepancies are found with previously computed decay rates th at are attributed to numerical problems. The statistical accuracy of the present level energies and wavelengths is ranked at +/-3 eV and +/ -2 mA, respectively, and that for A-values and partial Auger rates greater than lO(exp 13)/s at better than 20%.
Document ID
20050177036
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Palmeri, P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mendoza, C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kallman, T. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bautista, M. A.
(Instituto Venezolano de Investigaciones Cientificas Caracas, Venezuela)
Date Acquired
August 23, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Astronomy and Astrophysics
Publisher: European Southern Observatory
Volume: 10
ISSN: 0004-6361
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: FONACIT-S1-20011000912
Distribution Limits
Public
Copyright
Other

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