J/A+A/432/1137 Fe XXIII Benchmarking (Del Zanna+, 2005)
Benchmarking atomic data for astrophysics: Fe XXIII.
Del Zanna G., Chidichimo M.C., Mason H.E.
<Astron. Astrophys., 432, 1137-1150 (2005)>
=2005A&A...432.1137D 2005A&A...432.1137D (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: atomic data - line: identification - Sun: corona -
techniques: spectroscopic
Abstract:
Recent scattering calculations for Fe XXIII are benchmarked against
laboratory and astrophysical observations. The collisional data are
supplemented by radiative data obtained with empirical adjustments
that take into account observed wavelengths. All previous line
identifications and energy levels are reviewed and assessed in light
of these new calculations. Most of the previous identifications, in
particular of the astrophysically-important spectral lines are
confirmed. However, some identification are rejected or questioned,
and new ones proposed. The agreement between theoretical and
experimental data in terms of wavelengths, line intensities and level
lifetimes is very good. Observations of Fe XXIII L-shell emission
lines provide a great opportunity to directly measure electron
temperatures for a wide range of astrophysical sources. Examples from
solar (SMM, SOLEX) and stellar (Chandra, EUVE) observations are
provided.
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Author's address: Giulio Del Zanna
(End) Patricia Vannier [CDS] 21-Mar-2005