Resolved Specific Ion Data Collections

Temperature Range
9.651 eV → 1.939 x 104 eV


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  • Spontaneous Emission: Ca+14(i) → Ca+14(j) + hv
  • Electron Impact Excitation: Ca+14(i) + e → Ca+14(j) + e
2s2.2p2 3P0.0 0.0 cm-1
2s2.2p2 3P1.0 17559.0 cm-1
2s2.2p2 3P2.0 35923.0 cm-1
2s2.2p2 1D2.0 108600.0 cm-1
2s2.2p2 1S0.0 197670.0 cm-1
2s(2s).2p3(4s*) 5S2.0 275900.0 cm-1
2s(2s).2p3(2d*) 3D2.0 496680.0 cm-1
2s(2s).2p3(2d*) 3D1.0 497570.0 cm-1
2s(2s).2p3(2d*) 3D3.0 500230.0 cm-1
2s(2s).2p3(2p*) 3P0.0 581730.0 cm-1
2s(2s).2p3(2p*) 3P1.0 582780.0 cm-1
2s(2s).2p3(2p*) 3P2.0 585670.0 cm-1
2s(2s).2p3(4s*) 3S1.0 728880.0 cm-1
2s(2s).2p3(2d*) 1D2.0 729650.0 cm-1
2s(2s).2p3(2p*) 1P1.0 814380.0 cm-1
2p4 3P2.0 1107550.0 cm-1
2p4 3P1.0 1133850.0 cm-1
2p4 3P0.0 1139970.0 cm-1
2p4 1D2.0 1195120.0 cm-1
2p4 1S0.0 1350890.0 cm-1
A+14        20        15         7215000.0

 Date :Tue Oct 23, 1997
 File generated by Alessandro Lanzafame using C2ADAS
 (conversion from CHIANTI 1.01 database) 

 References (from CHIANTI 1.01 data files):

 Energy levels:  
    NIST Database for Atomic Spectroscopy, Version 1.0,
    NIST Standard Reference Database 61, 1995.

 Oscillator strengths: 
    A values: Froese Fischer & Saha, 1985, Phys. Scripta 32, 181
   	Theoretical energies were used by Froese Fischer & Saha to derive
   	the transition probabilities, but as the theoretical energies 
   	tabulated in the above paper did not differ from the observed
   	values by more than 0.5%, it was not deemed necessary to re-scale 
   	the A values to account for this.

 Collision strengths:
    collision strengths: 
      Aggarwal, Berrington & Keenan, 1991, Ap.J.Supp, 77, 441
      Note that the authors above regard their collisional model to be
      accurate to ~10%, and that the upsilons are tabulated from logT 5 to 7
      Only transitions between the ground levels and transitions from the 
      ground levels to the first excited configuration have been fitted. 
      It has been checked that the remaining transitions do not 
      substantially affect the level balance of the ion.



  • Alessandro Lanzafame
  • Keith Berrington
  • Kanti Aggarwal
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