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

c_3.elvlc (energy levels)

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

 
%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 level: levels 1 to 10: Berrington et al., ADNDT, 33, 195, 1985
%theoretical energy level: levels 11 to 20: Berrington et al., J.Phys.B, 1989, 22, 665
%produced as part of the Arcetri/Cambridge/NRL atomic data base collaboration 'CHIANTI'
%
% Enrico Landi 1996
 

c_3.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: c_3.wgfa
%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 level (levels 1 to 10): Berrington et al., ADNDT, 33, 195, 1985
%theoretical energy level (levels 11 to 20): Berrington et al., J.Phys.B, 1989, 22, 665
%A-values: Tachiev G., & Froese Fischer C. 1999, J.Phys.B, 32, 5805
% produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% P.R. Young - 5-Aug-2003

c_3.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: c_3.splups
%effective collision strengths for n=2-n=2 transitions : Berrington et al., 1985, ADNDT, 33, 195
%effective collision strengths for n=2-n=3 transitions : Berrington et al., 1989, J.Phys.B, 22, 665
%comment: effective collision strengths were provided in the temperature range
     4.1 < Log T < 5.7 (2-2 transitions) and 4.0 < Log T < 5.8 (2-3 transitions)
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%Enrico Landi 1996

c_3.psplups (proton collision data)

contains the spline fits to the scaled proton collision strengths.

 

%filename: c_3.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: Wiese W.L., Fuhr J.R., Deters T.M., 1996, J. Phys. Chem. Ref. Data, Monograph #7
%comment: Fits valid for 1e4 to 2.5e6 K.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Peter Young  23-Oct-01

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

c_3_table.html (html table)


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