Al IX - VERSION 11.0

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

  1. al_9.elvlc (energy levels)

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

     
%filename:  al_9.elvlc

Experimental energies:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2013).
NIST Atomic Spectra Database (ver. 5.1), see http://physics.nist.gov/asd


Theoretical energies:
G Y Liang, N R Badnell and G Zhao  A&A 547, A87 (2012)
DOI: 10.1051/0004-6361/201220277

Produced for the CHIANTI database v.8 by G. Del Zanna 2 May 2014

quick fix to set unkown observed energies to -1.0 (kpd 20 oct 2015)
 -1

  2. al_9.wgfa (radiative data)

    3. 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. 

     

Experimental energies:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2013).
NIST Atomic Spectra Database (ver. 5.1), see http://physics.nist.gov/asd


Theoretical energies, gf and A-values:
G Y Liang, N R Badnell and G Zhao  A&A 547, A87 (2012)
   DOI: 10.1051/0004-6361/201220277

Note: only transitions with a branching ratio above 10^-5 
have been retained.

Transitions within the first 15 levels (2s 2p2, 2p3):
P. Rynkun, P. Jonsson, G. Gaigalas,  C. Froese Fischer
Atomic Data and Nuclear Data Tables 98 (2012) 481, 556

 Produced for the CHIANTI database v.8 by G. Del Zanna 8 Nov 2014

 
%File processed with wgfa_tidy by pryoung on  6-Mar-2019
%File processed with wgfa_tidy by pryoung on 31-May-2023

  3. al_9.scups (electron collision data)

    4. 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 8 Nov 2014
                                                                 
Note: data for levels 8,9 have been corrected.                   
                                                                 
   DOI: 10.1051/0004-6361/201220277                              
G Y Liang, N R Badnell and G Zhao  A&A 547, A87 (2012)           
 Data are from

  4. al_9.psplups (proton collision data)

    5. contains the spline fits to the scaled proton collision strengths. 

     

%filename: al_9.psplups
%rates: Foster VJ, Keenan FP, Reid RHG, ADNDT 67, 99, 1997
%energies: From .elvlc file, experimental energies
%comment: The rate coefficients are in units cm^3/s.
%comment: Fits valid for temperatures 2e5 to 3.5e6 K.
%produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration
%
% Peter Young   15-May-2001

    The html tables below contain the radiative data of the brightest lines sorted in wavelength

    Page created by Giulio Del Zanna on Tue Dec 3 13:22:59 2024