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Modeling X-Ray Photoionized Plasmas: Ion Storage Ring Measurements of Low Temperature Dielectronic Recombination Rate Coefficients for L-Shell IronIron L-shell ions (Fe XVII to Fe XXIV) play an important role in determining the line emission and thermal and ionization structures of photoionized gases. Existing uncertainties in the theoretical low temperature dielectronic recombination (DR) rate coefficients for these ions significantly affects our ability to model and interpret observations of photoionized plasmas. To help address this issue, we have initiated a laboratory program to produce reliable low temperature DR rates. Here, we present some of our recent results and discuss some of their astrophysical implications.
Document ID
20000109986
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Savin, D. W.
(Columbia Univ. New York, NY United States)
Badnell, N. R.
(Strathclyde Univ. Glasgow, United Kingdom)
Bartsch, T.
(Justus Liebig-Univ. Giessen, Germany)
Brandau, C.
(Justus Liebig-Univ. Giessen, Germany)
Chen, M. H.
(Lawrence Livermore National Lab. Livermore, CA United States)
Grieser, M.
(Max-Planck-Inst. fuer Kernphysik Heidelberg, Germany)
Gwinner, G.
(Max-Planck-Inst. fuer Kernphysik Heidelberg, Germany)
Hoffknecht, A.
(Justus Liebig-Univ. Giessen, Germany)
Kahn, S. M.
(Columbia Univ. New York, NY United States)
Linkemann, J.
(Max-Planck-Inst. fuer Kernphysik Heidelberg, Germany)
Date Acquired
August 19, 2013
Publication Date
October 1, 2000
Publication Information
Publication: Atomic Data Needs for X-ray Astronomy
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: W-7405-eng-48
CONTRACT_GRANT: BMBF-06-HD-854I
CONTRACT_GRANT: NATO-CRG-950911
CONTRACT_GRANT: NAG5-5123
CONTRACT_GRANT: BMBF-06-GI-848
CONTRACT_GRANT: BMBF-06-GI-475
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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