O V - VERSION 5.1

The CHIANTI database consists of 4 primary ASCII files for each ion in the database.

• o_5.elvlc (energy levels)

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

  References:

  %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
  

  
  

• o_5.wgfa (radiative data)

  contains wavelengths, gf and A values for each transition. Wavelengths are based on experimental level energies where available; wavelengths calculated from theoretical energies are less accurate and are given as negative values.

  References:

  %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,
       5-13, 8-13, 4-14, 3-15, 4-15, 10-15, 12-15, 2-16, 3-16, 4-16 and 1-20: Hibbert, A., 1980, J.Phys.B, 13, 1721
  $A-values and oscillator strengths for all other transitions: Tachiev, G., Froese Fischer, C., J.Phys.B, 32, 5805, 1999
  %Comment: The gf values were not published by Hibbert and so they were derived from
       the published A-values, making use of the calculated energies in Hibbert's Table 2.
       Note that a number of E2 transitions are important for depopulating some
       of the n=3 levels (Hibbert's Table 4).
  % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  %  P.R. Young - 28-May-2003
  

  
  

• o_5.splups (electron collision data)

  contains the spline fits to the electron collision strengths scaled according to 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.

  References:

  
  %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
  

  
  

• o_5.psplups (electron collision data)

  contains the spline fits to the scaled proton collision strengths.

  References:

  
  %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)