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The CHIANTI database consists of the following primary ASCII files for this ion:
contains the energy levels in cm^(-1) It includes both experimental and theoretical values of the levels energies.
%observed energy levels: Ralchenko Y., Jou, F.C., Kelleher, D.E., Kramida, A.E., Musgrove, A.,
Reader, J., Wiese, W.L., Olsen, K., 2005, NIST Atomic Spectra Database, Version 3.0
%observed energy levels (95-97,140): Young, P.R., 2009, ApJ, 691, L77
%theoretical energy levels: Storey, Zeippen & Le Dorneuf, 2002, A&A, 394, 753
%comment: The third energy column contains the theoretical energies for the 3p4.3d2 levels, but reduced
by 43297 cm-1. This correction comes from averaging the observed energies for the (3P)3G levels.
% produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi and P.R. Young - Apr 2009
contains wavelengths, gf and A values of the transitions. The wavelengths are based on the experimental energy levels and should be the best available. Wavelengths calculated from the theoretical energies are of an indeterminate accuracy and their values are presented as negative values of the calculated wavelength.
%filename: fe_9.wgfa
%observed energy levels: Ralchenko Y., Jou, F.C., Kelleher, D.E., Kramida, A.E., Musgrove, A.,
Reader, J., Wiese, W.L., Olsen, K., 2005, NIST Atomic Spectra Database, Version 3.0
%observed energy levels (95-97,140): Young, P.R., 2009, ApJ, 691, L77
%theoretical energy levels: Storey, Zeippen & Le Dorneuf, 2002, A&A, 394, 753
%Radiative data: Storey, Zeippen & Le Dourneuf, 2002, A&A, 394, 753
%Comment: The third energy column has been used to generate new theoretical wavelengths.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi and P.R. Young - Apr 2009
contains the spline fits to the electron collision strengths scaled according the rules formulated by Burgess and Tully (1992). Accurate replication of the temperature averaged collision strength over a wide range of temperatures can be accomplished with the data in this file.
%filename: fe_9.splups %oscillator strengths: Storey, Zeippen & Le Dourneuf, 2002, A&A, 394, 753 %effective collision strengths: Storey, Zeippen & Le Dourneuf, 2002, A&A, 394, 753 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % E. Landi - May 2003