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

ne_9.elvlc (energy levels)

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

 
%observed energy levels: Ralchenko et al., 2005, NIST Database for Atomic Spectroscopy, Version 3.1.0,
     NIST Standard Reference Database 78.
%observed energy levels (2s2p 3P): Chen, M.H., Cheng, K.T., Johnson, W.R., 1993, Ph.Rev.A, 47, 3692
%theoretical energy levels: Chen, G.X., Smith, R.K., Kirby, K., Brickhouse, N.S.,
     Wargelin, B.J., 2006, Phys. Rev. A, 74, 042709
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E.Landi - Jan 2006
 

ne_9.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: ne_9.wgfa
%observed energy levels: Ralchenko et al., 2005, NIST Database for Atomic Spectroscopy, Version 3.1.0,
     NIST Standard Reference Database 78.
%observed energy levels (2s2p 3P): Chen, M.H., Cheng, K.T., Johnson, W.R., 1993, Ph.Rev.A, 47, 3692
%theoretical energy levels: Chen, G.X., Smith, R.K., Kirby, K., Brickhouse, N.S.,
     Wargelin, B.J., 2006, Phys. Rev. A, 74, 042709
%oscillator strengths and A values: Chen, G.X., Smith, R.K., Kirby, K., Brickhouse, N.S., 
   & Wargelin, B.J., 2006, Phys. Rev. A, 74, 042709
%A values (1-6): Lin, C.D., Johnson, W.R., Dalgarno, A., Phys Rev A, 1977, 15, 154
%A values (1-2): Traebert, E., Beiersdorfer, P., Brown, G.V., et al., 1999, Phys. Rev. A, 60, 2034
%Comment: 1-6 transition 2-photon A values extrapolated ~Z^6 from Drake, G.W.F., Phys Rev A, 1986, 34, 2871
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%   E. Landi - Jan 2006

ne_9.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: ne_9.splups
%oscillator strengths: Chen, G.X., Smith, R.K., Kirby, K., Brickhouse, N.S., 
   & Wargelin, B.J., 2006, Phys. Rev. A, 74, 042709
%effective collision strengths: Chen, G.X., Smith, R.K., Kirby, K., Brickhouse, N.S., 
   & Wargelin, B.J., 2006, Phys. Rev. A, 74, 042709
%comment: effective collision strengths were given in the 5.0 < log T < 8.0 temperature range
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
%   E. Landi - Jan 2006

ne_9.splups (proton collisional data) Not available in this VERSION.

ne_9.reclvl (total recombination population rates)

 
%filename: ne_9.reclvl
%Recombination rates: Porquet, D, & Dubau, J. 2000, A&ASS, 143, 495
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi - Aug 2006

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

ne_9_table.html (html table)


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