Ne IV - VERSION 5.1

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

• ne_4.elvlc (energy levels)

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

  References:

  %observed energy levels (1 - 13): Edlen, 1984, Phys.Scripta, 30, 135 
  %observed energy levels (17 - 18): Kelly,R.L., 1987, J.Phys.Chem.Ref.Data 16, Suppl. 1
  %observed energy levels:(14 - 16, 19 - 22) Bhatia A.K. and Kastner S.O.: 1988, ApJ 332, 1063
  %theoretical energy levels: C.A. Ramsbottom (private communication)
  %Produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  % E.Landi and P.R.Young 1999
  

  
  

• ne_4.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 energy levels (1 - 13): Edlen, 1984, Phys.Scripta, 30, 135
  %observed energy levels (17 - 18): Kelly,R.L., 1987, J.Phys.Chem.Ref.Data 16, Suppl. 1
  %observed energy levels:(14 - 16, 19 - 22) Bhatia A.K., Kastner S.O.: 1988, ApJ 332, 1063
  %A-values: from a SSTRUCT model
  %comment: the following configurations were input to SSTRUCT:
            2s2.2p3, 2s.2p4, 2p5, 
            2s2.2p2.3s, 2s2.2p2.3p, 2s2.2p2.3d
            2s.2p3.3s, 2s.2p3.3p, 2s.2p3.3d
            2s2.2p2.4s, 2s2.2p2.4p, 2s2.2p2.4d, 2s2.2p2.4f
            2s.2p3.4s, 2s.2p3.4p, 2s.2p3.4d, 2s.2p3.4f
  %Produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  % E.Landi and P.R.Young 1999
  

  
  

• ne_4.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: ne_4.splups
  %oscillator strengths: SUPERSTRUCTURE calculation (see ne_4.wgfa)
  %Effective collision strength: Ramsbottom, Bell, Keenan, 1998, MNRAS, 293, 233
  %effective collision strength were provided in the temperature range 3.6 < Log T < 6.1
  % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  %E. Landi and P.R.Young 1998
  

  
  

• ne_4.psplups (electron collision data) - Not Present in CHIANTI 5.1

  contains the spline fits to the scaled proton collision strengths.
  

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

  
  

• ne_4_table.html (html table)