C I - VERSION 11.0

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

c_1.elvlc (energy levels)

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

 
 
 Theoretical energies:
Wang et al., 2013, Phys, Rev. A, 87, 012704
   doi = {10.1103/PhysRevA.87.012704},
   adsurl = {http://adsabs.harvard.edu/abs/2013PhRvA..87a2704W},

Level-resolved energies communicated by O. Zatsarinny (2014).


Experimental energies:
Chang  E.~S. and Geller, M., 1998, Phys. Scr., 58, 326 
 doi = {10.1088/0031-8949/58/4/008},
 adsurl = {http://adsabs.harvard.edu/abs/1998PhyS...58..326C}
 

Produced for the CHIANTI database v.8 by G. Del Zanna 15 Mar 2015




 -1

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:  c_1.wgfa

A-values  for the forbidden lines within the ground configuration
are from the CIV3 calculations of Hibbert et al. 1993,  A&ASS, 99, ,179

The rest are from O. Zasarinny (priv. comm. 2014).

Note that the A-values for the forbidden lines calculated by
O. Zasarinny are in good agreement withthe CIV3. Here they are:

1    2       6091000.      0.000e+00      7.540e-08
1    3       2303000.      0.000e+00      2.890e-14
1    4       9810.972      0.000e+00      1.160e-07
2    3       3704000.      0.000e+00      4.430e-07
2    4       9826.800      0.000e+00      7.040e-05
2    5       4622.863      0.000e+00      2.250e-03
3    4       9852.939      0.000e+00      2.103e-04
3    5       4628.639      0.000e+00      1.580e-05
4    5       8729.534      0.000e+00      4.300e-01

Experimental energies have been taken from
Chang & Geller (1998, Phys Scripta, 58, 326)

Produced for the CHIANTI database v.8 by G. Del Zanna on 15 Mar 2015

Removed a few unimportant unphysical transitions from levels
13,25,26,39 (observed energy of the upper level lower than the energy of the lower level)
G. Del Zanna 5 May 2016

 K. Dere  minimum branching ratio =   1.00e-05  :  2017 December 06
%File processed with wgfa_tidy by pryoung on  6-Mar-2019
%File processed with wgfa_tidy by pryoung on 31-May-2023

c_1.scups (electron collision data)

contains the effective electron collision strengths scaled according to the rules formulated by Burgess and Tully (1992).

 
                                                                             

Produced for the CHIANTI database v.8 by G. Del Zanna 15 Mar 2015            

obtained by extrapolation.                                                   
The high-temperature limits for the forbidden transitions have been          
transitions converge to the correct high-temperature limits.                 
to 500 000 K. The  collision strengths of the dipole-allowed                 
by O. Zasarinny (priv. comm.,2014) over a wide temperature range, from 1000 K
The fine-structure collision strengths have been calculated                  
Note: Wang et al. published LS collision strengths.                          
                                                                             
gf values have been communicated by O. Zatsarinny (priv. comm.,2014)         
                                                                             
   adsurl = {http://adsabs.harvard.edu/abs/2013PhRvA..87a2704W},             
  doi = {10.1103/PhysRevA.87.012704},                                        
Wang et al., 2013, Phys, Rev. A, 87, 012704                                  
Collision strengths:

(proton collisional data) Not available in this VERSION.

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

c_1_table.html (html table)