belike_jl1990o.dat

• Spontaneous Emission: O⁺⁴(i) → O⁺⁴(j) + hv
• Electron Impact Excitation: O⁺⁴(i) + e → O⁺⁴(j) + e

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   Energy Levels
   The results from NSRDS NBS3 SECT 9 were used. These were within 2
   wavenumbers of the results of Edlen (Phys. Scr 32, 86, 1985 and
   28, 51, 1983) who only considered n=2 levels.

   Ionisation Potential
   As energy levels.

   A Values
   The results of Hibbert (J Phys B 13, 1721, 1980) were used for a
   consistent set (E1 and E2). The results of Nussbaumer and Storey
   (Astr and Ast 74, 244, 1979) were used for other transitions.

   Collision Data
   For the 2s2 1S - 2s2p 3P transition the results of Berrington et al
   (J Phys B 12, L275, 1979) are used. This was a 12 state R Matrix
   calculation done to show the effect of resonances converging to the n=3
   thresholds. Target wavefunction were CI from Hibbert's CIV3 code.

   For other transitions between the levels 2, the results of the 6
   state R matrix calculation of Berrington et al (At Data and Nucl.
   Data Tables 33, 195, 1985) were used. The R matrix calculation was
   carried out for total angular momenta from 0 to 6, for odd and even
   parities and doublet and quartet spin states. The problem of
   pseudoresonances was eliminated. Calculations were supplemented by
   Coulomb Born calculations for angular momenta between 7 and 20. For
   some allowed transitions higher partial waves had to be included and
   the technique of Burgess and Sheorey was used.
   In practice most of this data was extracted from the general Z file
   JETSHP.BELIKE.DATA(BBDK1984).

   For 2 to 3 transitions the results of Widing et al (Astrophys. J 257,
   913, 1982) were used. This was a 12 state calculation as for the 2s2 1S
   - 2s2p 3P calculation. However, for 2s2 1S - 2s3l 3L the results of
   Tayal et al ( Proc of ICPEAC, Berlin, p192, 1982) were used. This was
   an extension of the earlier 12 state calculation.


   J LANG    April 1990.
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Dependents

• ADF04 belike_dhbj95#o.dat
• ADF04 belike_dhbj95#o.dat
• ADF04 belike_jl1994o.dat
• ADF04 belike_jl1994o.dat
• ADF04 belike_dhbl95#o.dat
• ADF04 belike_dhb94#o.dat

Contributors

• Jim Lang
• K P Dere
• Keith Berrington