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: http://www.arcetri.astro.it/science/chianti/chianti_4.2/database/fe/fe_23d.html
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The CHIANTI database consists of 4 primary ASCII files for each ion in the database.
contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies.
References:
%observed energy levels: 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: Bhatia, A.K., private communications %energy levels (above IP): calculations of Safronova reported in Kato et al., 1997, ADNDT, 67, 225. %comment: energies have been corrected (Sep 2003). This affects the position of all wavelengths, now in much better agreement with observations. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Ken Dere and Enrico Landi - Sep 2003
contains wavelengths, gf and A values for each transition. Wavelengths are based on experimental level energies where available; wavelengths calculated from theoretical energies are less accurate and are given as negative values.
References:
%observed energy levels: 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., 1984, ADNDT, 30, 125 %comment: several NIST observed energy levels have been changed. old value new value 2p3d 3F2 9646000 9638000 3D2 9728000 9646000 1D2 9638000 9728000 3P2 9753000 9753000 %oscillator strengths (n=2): Bhatia, 1996, unpublished calculations %oscillator strengths (from n=3 to n=2): Sampson, D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125 %comment: gf values for transitions 19-26 and 23-26 were simply taken to be equal to the O V gf values reported by Hibbert, 1980, J. Phys. B, 13, 1721. The A values were obtained from the gf values by using the wavelengths listed. %A values (above IP): calculations of Safronova reported in Kato et al., 1997, ADNDT, 67, 225. %comment: theoretical wavelengths of Kato/Safronova are used as observed wavelengths (positive values) %comment: 1 2 0. 0.000e+00 1.000e+07 2S2 1 S0.0 2S2P 3 P0.0 a fix %comment: theoretical energies have been used as experimental values for the dielectronic transitions %comment: level energies and wavelengths have been corrected (Sep 2003). This affects the position of all wavelengths, now in much better agreement with observations. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Ken Dere and Enrico Landi - Sep 2003
contains the spline fits to the electron collision strengths scaled according to 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.
References:
%filename: fe_23d.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 % % Ken Dere - Aug 1999