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

o_6.elvlc (energy levels)

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

 
%energy levels: Fuhr, J.R., Kelleher, D.E., Martin, W.C., Musgrove, A., Sugar, J., Wiese, W.L.,
        Dalton, G.R., Dragoset, R.A., Mohr, P.J., Olsen, K., Reader, J., Saloman, E.B., Sansonetti, C.J.,
        Wiersma, G., "NIST Atomic Spectra Database" Ver. 2.0, March 1999, NIST Physical Reference Data.
%theoretical energy levels (n=2,3,4): Badnell, N.R., Pindzola, M.S., 2000, J.Phys.B, 33, 1013
%theoretical energy levels (n=5): Zhang,H.L., Sampson,D.H., Fontes,C.J., 1990, ADNDT, 44, 31.
%Innershell theoretical energy levels: Sampson, D.H., Goett,S.J., 1983, ADNDT, 29, 535
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E.Landi - Jun 2001
 

o_6.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: o_6.wgfa
%energy levels: Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, 
       March 1999, NIST Physical Reference Data.
%theoretical energy levels (n=2,3,4): Badnell, N.R., Pindzola, M.S., 2000, J.Phys.B, 33, 1013
%theoretical energy levels (n=5): Zhang, H.L., Sampson, D.H., Fontes, C.J., 1990, ADNDT, 44, 31.
%Innershell theoretical energy levels: Sampson, D.H., Goett, S.J., 1983, ADNDT, 29, 535
%oscillator strengths: H.L.Zhang, D.H.Sampson, C.J.Fontes, 1990, ADNDT, 44, 31
%oscillator strengths: Martin, I., Karwowski, J., Diercksen, G.H.F., Barrientos, C., 1993, A&AS, 100, 595.
%Innershell radiative data: Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%Comment: Other radiative data were calculated using SUPERSTRUCTURE with a 23 configuration model
%A values (autoionizing): Vainshtein, L.A., Safronova, U.I., 1978, ADNDT, 21, 49 and 1980, ADNDT, 25, 311 
                          - updated by U.I. Safronova, 1999
%comment:  unobserved lines
    1   26       -22.5472      3.689e-06      2.419e+07        1S2 2S 2S0.5 -  1s.(2S).2s.2p 4P0.5
    1   28       -22.5401      1.325e-07      2.899e+05        1S2 2S 2S0.5 -  1s.(2S).2s.2p 4P2.5
    2   25       -23.1869      6.745e-03      4.182e+10        1S2 2P 2P0.5 -         1s.2s2 2S0.5
    2   31       -22.4131      6.981e-06      4.632e+07        1S2 2P 2P0.5 -         1s.2p2 4P0.5
    3   25       -23.1898      1.323e-02      8.200e+10        1S2 2P 2P1.5 -         1s.2s2 2S0.5
    3   31       -22.4158      7.072e-07      4.692e+06        1S2 2P 2P1.5 -         1s.2p2 4P0.5
    3   33       -22.4123      4.447e-05      9.836e+07        1S2 2P 2P1.5 -         1s.2p2 4P2.5
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% E. Landi and K.P.Dere - Jun 2001

o_6.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: o_6.splups
%effective collision strengths (transitions 1 - 2 to 1 - 15): Badnell, N.R., Pindzola, M.S., 2000, J.Phys.B, 33, 1013
%oscillator strengths (levels 1 - 24): H.L. Zhang, D.H. Sampson, C.J. Fontes, 1990, ADNDT, 44, 31
%oscillator strengths innershell (levels 25 - 40): Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%collision strengths (levels 16 - 24, transitions 2 - 3 to 2 - 24):  H.L. Zhang, D.H. Sampson, C.J. Fontes, 1990, ADNDT, 44, 31
%collision strengths innershell (levels 25 - 40): Goett, S.J., Sampson, D.H., 1983, ADNDT, 29, 535
%comment: the original data from Badnell & Pindzola are provided in LS coupling. These have been transformed into 
    intermediate coupling effective collision strengths according to the statistical weights
%comment: effective collision strengths were provided in the temperature range 4.55 < Log T < 6.85
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Enrico Landi - Jun 2001

o_6.splups (proton collisional data) Not available in this VERSION.

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

o_6_table.html (html table)


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