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

fe_8d.elvlc (energy levels)

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

 
%observed energy levels: Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%theoretical energy levels: 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_8d.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.

 
%filename: fe_8d.wgfa
%observed energy levels: Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M., 2003, A&A, 410, 359
%A values (below ionization): Griffin, D.C., Pindzola, M.S., Badnell, N.R., 2000, A&ASS, 142, 317
%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: Wavelengths for transitions below ionizaation are calculated using the theoretical energies of Palmeri et al,
          but A values are from Griffin et al.
%comment: Palmeri et al did not list the ground 2 D 5/2 level, so we have forced all transitions from the
          levels in the 3p5.3d2 configuration to decay to the ground level (with theoretical wavelengths) summing
          in the A value of this transition all the Griffin et al A values from the upper level to the two 2 D levels 
          of the ground configuration. We have artifically set to zero the gf values of these transitions.
%comment: A values for levels 13 to 37 are a fix
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%  E. Landi - Feb 2005

fe_8d.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_8d.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_8d_table.html (html table)


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