The CHIANTI database has 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.
Theoretical energies:
Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
doi = {10.1051/0004-6361/201423864}
Note: only the bound levels up to n=5 have been retained.
Observed energies:
n=2 levels: NIST database
Other levels:
Fawcett & Hayes 1987, Phys. Scr., 36, 80
Goldsmith, S., Oren, L., Cohen, L., 1974, ApJ, 188, 197
Levels 11,13,15: Fawcett and Hayes.
Levels 17,18,19,20,25 Fawcett and Hayes. Note: level 20, 2s 3d 1D2 had an incorrect
energy in the previous CHIANTI version.
Level 27, 2p 3p 3D2: from energy difference in Goldsmith et al., not reported by NIST
Levels 28,29,31,32,37 Fawcett and Hayes
Level 38, 2p 3d 3D1 Goldsmith et al.
Levels 39,40,41,44 Fawcett and Hayes
Level 45 2p 3d 1F3 Fawcett and Hayes, not reported by NIST
Level 46 Fawcett and Hayes
Levels 52,54,55,56 Fawcett and Hayes
Level 69 2p 4p 3D3 Fawcett and Hayes, not reported by NIST, not in
previous CHIANTI version
Level 83 Fawcett and Hayes
Level 84 Fawcett and Hayes
Produced as part of the 'CHIANTI' atomic data base collaboration by
Giulio Del Zanna, May 2020
-1
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.
gf-values, A-values and theoretical energies:
Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
doi = {10.1051/0004-6361/201423864}
Only transition probabilities with a branching ratio
greater than 10^(-5) have been retained.
gf-values, A-values for the n=2,3 (lowest 20 levels):
MBPT calculations by Wang, K. et al., 2015, ApJS, 218, 16
doi = {10.1088/0067-0049/218/2/16}
Observed energies:
n=2 levels: NIST database
Other levels:
Fawcett & Hayes 1987, Phys. Scr., 36, 80
Goldsmith, S., Oren, L., Cohen, L., 1974, ApJ, 188, 197
Levels 11,13,15: Fawcett and Hayes.
Levels 17,18,19,20,25 Fawcett and Hayes. Note: level 20, 2s 3d 1D2 had an incorrect
energy in the previous CHIANTI version.
Level 27, 2p 3p 3D2: from energy difference in Goldsmith et al., not reported by NIST
Levels 28,29,31,32,37 Fawcett and Hayes
Level 38, 2p 3d 3D1 Goldsmith et al.
Levels 39,40,41,44 Fawcett and Hayes
Level 45 2p 3d 1F3 Fawcett and Hayes, not reported by NIST
Level 46 Fawcett and Hayes
Levels 52,54,55,56 Fawcett and Hayes
Level 69 2p 4p 3D3 Fawcett and Hayes, not reported by NIST, not in
previous CHIANTI version
Level 83 Fawcett and Hayes
Level 84 Fawcett and Hayes
Note: only the bound levels up to n=5 have been retained.
Produced as part of the 'CHIANTI' atomic data base collaboration by
Giulio Del Zanna, May 2020
%File processed with wgfa_tidy by pryoung on 31-May-2023
contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).
Giulio Del Zanna, May 2020
Produced as part of the 'CHIANTI' atomic data base collaboration by
Note: only the bound levels up to n=5 have been retained.
doi = {10.1051/0004-6361/201423864}
Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104
oscillator strengths and effective collision strengths:
contains the spline fits to the scaled proton collision strengths.
%filename: s_13.psplups
%rates: Ryans R.S.I., Foster-Woods V.J, Copeland F., Keenan F.P., Matthews A., Reid R.H.G., 1998, ADNDT 70, 179-229
%energies: Martin W.C., Sugar J., Musgrove A., Dalton G.R., 1995, NIST Database for Atomic Spectroscopy,
Version 1.0, NIST Standard Reference Database 61.
%comment: Fits valid for temperatures 5e5 to 7.5e7 K.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Peter Young 24-Oct-00
Page created by Giulio Del Zanna on Wed Apr 16 17:44:18 2025