The CHIANTI database consists of the following primary ASCII files for this ion:

fe_24.elvlc (energy levels)

contains the energy levels in cm^(-1) It includes both experimental and theoretical values of the levels energies.

 
%observed energy levels (1-24): Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%Theoretical energy levels (1-24): Zhang,H.L., Sampson,D.H., Fontes,C.J., 1990, ADNDT, 44, 31.
%Innershell observed energy levels: NIST Database, Version 2.0, NIST Standard Reference Database 61
%Innershell theoretical energy levels: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%comment:  energy of level 30 has been changed from its previous value:
 30    16 1s.2s(3P).2p    2  1 P  1.5  4   53752000.000     489.824290   53841604.000     490.640808
  to match observed X-ray spectra (Aug 2003)
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi and K.P. Dere - Aug 2003
 

fe_24.wgfa (radiative data)

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.

 
%observed energy levels (1-24): Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
% Theoretical energy levels (1-24): Zhang,H.L., Sampson,D.H., Fontes,C.J., 1990, ADNDT, 44, 31.
%Innershell observed energy levels: NIST Database, Version 2.0, NIST Standard Reference Database 61
%Innershell theoretical energy levels: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%oscillator strengths: H.L.Zhang, D.H.Sampson, C.J.Fontes, 1990, ADNDT, 44, 31
%oscillator strengths: Martin,I., Karwowski,J., Diercksen,G.H.F., Barrientos, C., 1993, A&AS, 100, 595.
% Innershell radiative data: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%Comment: Other radiative data were calculated using SUPERSTRUCTURE with a 23 configuration model
%comment: the wavelength of the following has been changed to 1.8610 to match obs. spectra (Aug 2003):
    1   30         1.8604      1.004e+00      4.851e+14             1s2.2s 2S0.5 -        1s.2s(3P).2p 2P1.5
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi and K.P. Dere - Aug 2003

fe_24.splups (electron collision data)

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_24.splups
%oscillator strengths: H.L.Zhang, D.H.Sampson, C.J.Fontes, 1990, ADNDT, 44, 31
%oscillator strengths: Martin,I., Karwowski,J., Diercksen,G.H.F., Barrientos, C., 1993, A&AS, 100, 595
% Innershell radiative data: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%collision strengths: Zhang, Sampson, Fontes, 1990, ADNDT, 44, 31
%Collision strengths innershell transitions: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E.Landi and K.P.Dere - July 1999

fe_24.splups (proton collisional data) Not available in this VERSION.

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The html table below contains the radiative data of the brightest lines sorted in wavelength

fe_24_table.html (html table)


Last revised by G. Del Zanna on 4-Sep-2009