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

fe_9d.elvlc (energy levels)

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

 
%observed energy levels (below ionization): Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%Theoretical energy levels (above ionization): Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%theoretical energy levels (below ionization): Fawcett & Mason, ADNDT 47, 17 (1991)
%observed energy levels (above ionization): Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%Comment: the theoretical energies from Palmeri et al. have been used as experimental ones
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%  E. Landi - Feb 2005
 

fe_9d.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 (below ionization): Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%observed energy levels (above ionization): Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%comment: the following configurations were used in the model:

        3s2 3p6, 3s2 3p5 3d, 3s 3p6 3d
        3s 3p5 3d2, 3s2 3p4 3d2, 3s0 3p6 3d2, 3p3 3d3
        3s2 3p5 {4s, 4p, 4d, 4f}

  Observed energy values were used to compute the A values
%A values (above ionization): Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%autoionization rates: Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%comment: A values for levels 2 and 12 to 22 are a fix
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%  E. Landi - Feb 2005

fe_9d.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_9d.splups
%Effective collision strengths and autoionization rates: Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%  E. Landi - Oct 2004

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

fe_9d_table.html (html table)


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