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

c_4d.elvlc (energy levels)

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

 
%observed energy levels: Kelly, R.L., 1987, J.Phys.Chem.Ref.Data 16, Suppl. 1
%theoretical energy levels: Burke, V.M., 1992, J.Phys.B, 25, 4917
%energy levels (above IP): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
   and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Ken Dere - Feb 2002
 

c_4d.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_4d.wgfa
%observed energy levels: Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, 
   March 1999, NIST Physical Reference Data
%observed energy levels: Kelly, R.L., 1987, J.Phys.Chem.Ref.Data 16, Suppl. 1
%theoretical energy levels: Badnell, N.R., Pindzola, M.S., 2000, J.Phys.B, 33, 1013
%energy levels (above IP): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
   and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
%oscillator strengths: W.L. Wiese, M.W. Smith, B. M. Glennon, Atomic Transition Probabilities, 
   Vol I, Hydrogen Through Neon, NSRDS-NBS 4, 1966
%oscillator strengths: Martin, I., Karwowski, J., Diercksen, G.H.F., Barrientos, C., 1993, A&AS, 100, 595
%oscillator strengths: Wiese, W.L., Smith, M.W., Glennon, B.M., 1966, Atomic Transition Probabilities, NSRDS-NBS-4
%comment:  hydrogenic f values
%A values (above IP): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
   and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
%comment: theoretical energies have been used as experimental values for the dielectronic transitions
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%   Ken Dere - Feb 2000

c_4d.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_4d.splups
%collision strengths: from updated autoionization rates of Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49
   and 1980, ADNDT, 25, 311 - updated by U.I. Safronova, 1999
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Ken Dere - Feb 2000

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

c_4d_table.html (html table)


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