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

fe_25d.elvlc (energy levels)

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

 
%observed energy levels: Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%observed energy (level 34):  Martin,W.C., Sugar, J., Musgrove, A., Dalton, G.R., 1995,
     NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61
%theoretical energy levels: Sampson, D.H., Goett, S.J., Clark, R.E.H., 1983, ADNDT, 29, 467
%energy levels (above IP): calculations of Safronova reported in Kato et al., 1997, ADNDT, 67, 225
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P.Dere and E.Landi 2000
 

fe_25d.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_25d.wgfa
%observed energy levels: Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%observed energy (level 34): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995,
    NIST Database, Version 1.0, NIST Standard Reference Database 61.
%theoretical energy levels: Sampson,D.H., Goett, S.J., Clark, R.E.H., 1983, ADNDT, 29, 467
%A values (1-2,5,6; 2-4,5,6): Lin,C.D., Johnson,W.R., Dalgarno,A., Phys Rev A, 1977, 15, 154
%A values (1-3, 2-phot): Drake,G.W.F., Phys Rev A, 1986, 34, 2871
%oscillator strengths and A values: Wiese W.L., Fuhr J.R., 1995,
    NIST Database, Version 1.0, NIST Standard Reference Database 61.
%oscillator strengths: Sampson,D.H., Goett,S.J., Clark,R.E.H., 1983, ADNDT, 29, 467,  Hydrogenic values
%oscillator strengths: Wiese,W.L., Smith,M.W., Glennon,B.M., 1966, Atomic Transition Probabilities, NSRDS-NBS-4.
%comment: Wiese's f values are hydrogenic
%A values (above IP):  calculations of Safronova reported in Kato et al., 1997, ADNDT, 67, 225
%comment: theoretical energies have been used as experimental values for the dielectronic transitions
%comment: V4.02 wavelengths have been replaced with Safronova's values to better match the 
          observations (E.Landi - Oct 2003).
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P.Dere, Jan. 1998

fe_25d.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.

 

%file: fe_25d.splups
%collision strength values from calculations of Safronova reported in Kato et al., 1997, ADNDT, 67, 225
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% K.P. Dere - 1999

---

The html tables below contain the radiative data of the brightest lines sorted in wavelength

fe_25d_table1.html (html table -- 1.4608 -- 30.1151 A)

fe_25d_table2.html (html table -- 30.2188 -- 30.2188 A)


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