CHIANTI

An Atomic Database for Spectroscopic Diagnostics of Astrophysical Plasmas.

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Naval Research Laboratory (USA) - Rutherford Appleton Laboratory (UK)
University of Cambridge (UK) - George Mason University (USA) - Universita' degli Studi di Firenze (Italy)

O V - VERSION 5.1


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

  1. o_5.elvlc (energy levels)
  2. contains the energy levels in cm^(-1) It includes both experimental and theoretical values of the levels energies.

     
    %observed energies: Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, March 1999, NIST Physical Reference Data
    %theoretical energies: Berrington, K.A., private communication, 13-Mar-2003
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    %  P.R.Young - 13-Mar-2003
     
    

  3. o_5.wgfa (radiative data)
  4. 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 energies: Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, March 1999, NIST Physical Reference Data
    %A-values and oscillator strengths for all transitions involving levels > 20, and also transitions 3-9, 4-9,
    

  5. o_5.splups (electron collision data)
  6. 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: o_5.splups
    %theoretical energies: Berrington, K.A., private communication, 13-Mar-03
    %gf-values: Berrington, K.A., private communication, 13-Mar-03
    %upsilons: Berrington, K.A., private communication, 13-Mar-03
    %comment: This data is from the same calculation as presented in
       Kato et al. 1990, ADNDT, 44, 133 but contains more levels
       and some errors in the original paper have been corrected.
    %comment: the fits are accurate in the range 4.2 < log T < 6.3
    %comment: The original data were tabulated over the logT range 3.5 to 6.5, 
       however for many transitions it was not possible to get a 
       good fit over the whole range. The fits are accurate to <2% 
       over the range 4.2 to 6.3. For many transitions, however, 
       the fits are accurate over a wider temperature range.
    % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    %  P.R. Young - 19-May-03
    

  7. o_5.psplups (proton collision data)
  8. contains the spline fits to the scaled proton collision strengths.

     
    
    %filename: o_5.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 temperatures 4e4 to 1e7 K.
    %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
    %
    % Peter Young  19-Oct-00
    


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

    o_5_table.html (html table)


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