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The CHIANTI database consists of the following primary ASCII files for this ion:
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 levels (12,21,22,25,29,34,37,39-42): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R.,
1995, NIST Database, Version 2.0, NIST Standard Reference Database 61.
%comment: the following NIST observed energy levels have been changed.
old value new value
2p3d 3F2 9646000 9638000
3D2 9728000 9646000
1D2 9638000 9728000
3P2 9753000 9753000
%theoretical energy levels (n=2): Chidichimo,M.C., Zeman,V., Tully,J.A., Berrington,K.A., 1999,A&AS, 137, 175
%theoretical energy levels (n=3): Sampson,D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125
%theoretical energy levels (n=4): Bhatia, 1996, unpublished calculations
%Observed energy level innershell: Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995, NIST Database,
Version 2.0, NIST Standard Reference Database 61.
%theoretical energy levels innershell: from the Flexible Atomic Code (developed by Dr. Ming-Feng Gu)
%comment: innershell levels have been added to account for important spectral features at around 1.870 A
(Oct 2003). All the rest is unchanged.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E.Landi - Oct 2003
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: Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8
%observed energy levels (12,21,22,25,29,34,37,39-42): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R.,
1995, NIST Database, Version 2.0, NIST Standard Reference Database 61.
%theoretical energy levels (n=2): Chidichimo,M.C., Zeman,V., Tully,J.A., Berrington,K.A., 1999, A&AS, 137, 175
%theoretical energy levels (n=3): Sampson,D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125
%theoretical energy levels (n=4): Bhatia, 1996, unpublished calculations
%comment: the following 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 levels): Zhang, H.L., Sampson. D.H., 1992, ADNDT, 1992, 52, 143
%oscillator strengths (n=3 levels): Sampson,D.H., Goett,S.J., Clark,R.E.H., 1984, ADNDT, 30, 125
%oscillator strengths (n=4 levels): Bhatia, 1996, unpublished calculations
%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.
%Observed energy level innershell: Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995, NIST Database,
Version 2.0, NIST Standard Reference Database 61.
%theoretical energy levels innershell: from the Flexible Atomic Code (developed by Dr. Ming-Feng Gu)
%Radiative data innershell: from the Flexible Atomic Code (developed by Dr. Ming-Feng Gu)
%comment: The wavelength of the 1 - 57 transition has been considered observed even though it comes from
theoretical energies.
%comment: innershell levels have been added to account for important spectral features at around 1.870 A
(Oct 2003). All the rest is unchanged.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi - Oct 2003
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_23.splups
%oscillator strengths (n=2 levels): Zhang, H.L., Sampson. D.H., 1992, ADNDT, 1992, 52, 143
%oscillator strengths (n=3 levels): Sampson,D.H., Goett,S.J., Clark,R.E.H., 1984, ADNDT, 30, 125.
%oscillator strengths (n=4 levels): Bhatia, 1996, unpublished calculations
%effective collision strengths (n=2): Chidichimo,M.C., Zeman,V., Tully,J.A., Berrington,K.A., 1999, A&AS, 137, 175
%collision strengths (n=3): Sampson, D.H., Goett, S.J., Clark, R.E.H., 1984, ADNDT, 30, 125
%collision strengths all other transitions: Bhatia A.K. (private communications)
%gf values innershell: from the Flexible Atomic Code (developed by Dr. Ming-Feng Gu)
%Collision strengths innershell: from the Flexible Atomic Code (developed by Dr. Ming-Feng Gu)
%comment: Effective collision strengths from Chidichimo et al are provided for 6.3 < log T < 8.1
%comment: innershell levels have been added to account for important spectral features at around 1.870 A
(Oct 2003). All the rest is unchanged.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Enrico Landi May 2001 (n=2, n=4); K.P. Dere Sept. 97 (n=3); Enrico Landi Oct 2003 (innershell)
contains the spline fits to the scaled proton collision strengths.
%filename: fe_23.psplups %rates: Ryans R.S.I., Foster-Woods V.J, Copeland F., Keenan F.P., Matthews A., Reid R.H.G., 1998, ADNDT 70, 179-229 %energies: CHIANTI database, ver.1, Dere et al., A&AS 125, 149, 1997 %comment: Fits valid for temperatures 4e6 to 3e8 K. %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % Peter Young 24-Oct-00