Mg V - VERSION 5.1

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

• mg_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 energy levels (n=2): Edlen, B., 1983, Phisica Scripta, 28, 51
  %observed energy levels (n=3): Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, March 1999, NIST Physical Reference Data
  %theoretical energy levels: Landi E. & Bhatia A.K., 2005, ADNDT, in press
  %comment: theoretical energies come from the 24-configuration calculation of Landi & Bhatia
  %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  % 
  %E. Landi - Feb 2004
  

  
  

• mg_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 energy levels (n=2): Edlen, B., 1983, Phisica Scripta, 28, 51
  %observed energy levels (n=3): Fuhr, J.R., et al., "NIST Atomic Spectra Database" Ver. 2.0, March 1999, NIST Physical Referenc
  e Data
  %theoretical energy levels: Landi E. & Bhatia A.K., 2005, ADNDT, in press
  %A values and oscillator strengths: Landi E. & Bhatia A.K., 2005, ADNDT, in press
  %comment: theoretical energies, oscillator strengths and A values come from the 24-configuration calculation of Landi & Bhatia
  %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  %  E. Landi - Feb 2004
  

  
  

• mg_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: mg_5.splups
  %Oscillator strengths: Landi E. & Bhatia A.K. 2005, ADNDT, in press
  %effective collision strengths ground configuration T<10^5 :Butler, K., Zeippen, C.J., A&ASS, 1994, 108, 1
  %effective collision strengths ground configuration T>10^6 : Landi E. & Bhatia A.K. 2005, ADNDT, in press
  %Collision strengths all other transitions: Landi E. & Bhatia A.K. 2005, ADNDT, in press
  %comment: close-coupling effective collision strengths from Butler & Zeippen have been merged
      with effective collision strengths derived from Bhatia A.K. & Landi, since Butler & Zeippen
      provide data only up to 10^5 K. This approximate treatment influences most the
      transitions within the ground term 3P, and less those involving the 1D and 1S singlets.
  %comment: oscillator strengths come from the 6-configuration calculation of Landi & Bhatia, for
      consistency with the collision strengths calculation
  %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  % E. Landi - Apr 2004
  

  
  

• mg_5.psplups (electron collision data)

  contains the spline fits to the scaled proton collision strengths.

  References:

  
  %filename: mg_5.psplups
  %rates: Ryans R.S.I., Keenan F.P., Reid R.H.G., unpublished.
  %energies: Observed values, from .elvlc file
  %comment: Fits valid for temperatures 8e4 to 4e6 K.
  %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
  %
  % Peter Young   15-May-2001
  

  
  

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

  
  

• mg_5_table.html (html table)