Differences between revisions 4 and 5
Revision 4 as of 2009-02-06 08:37:33
Size: 1254
Editor: UlrikeHeiter
Comment: added location of original linelists and linelists with doubling removed
Revision 5 as of 2009-02-06 10:11:45
Size: 1663
Editor: UlrikeHeiter
Comment: added number of lines
Deletions are marked like this. Additions are marked like this.
Line 5: Line 5:
For files with lambda-doubled lines merged see below.
Line 6: Line 7:
'''Transitions in BP's line list:''' Number of lines:

||Isotope ||N,,merg,,||N,,orig,,||
||46 || 8193347 ||11140205 ||
||47 || 8194614 ||11141521 ||
||48 || 8195512 ||11142777 ||
||49 || 8196355 ||11143980 ||
||50 || 8197133 ||11144857 ||
||total ||40976961 ||55713340 ||

N,,merg,, ... original lists<<BR>>
N,,orig,, ... lambda-doubled lines merged

== Transitions in BP's line list ==
Line 10: Line 24:
'''Comment on "lambda doubling" (BP, 28 Jan 2009):''' == Lambda doubling ==

--
BertrandPlez 28 Jan 2009:

TiO data

TiO line lists calculated by Bertrand on 29 May 2008. The files are in Uppsala at /h5/plez/TiOVALD/linelist/linelist??_all.dat.gz For files with lambda-doubled lines merged see below.

Number of lines:

Isotope

Nmerg

Norig

46

8193347

11140205

47

8194614

11141521

48

8195512

11142777

49

8196355

11143980

50

8197133

11144857

total

40976961

55713340

Nmerg ... original lists
Norig ... lambda-doubled lines merged

Transitions in BP's line list

BP_transitions.png

Lambda doubling

-- BertrandPlez 28 Jan 2009:

Some transitions are affected by Lambda-doubling. In that case there are 2 sublevels that give rise to transitions, and if the separation is large enough, they appear in the list as 2 lines with the same parameters except for the parity of the upper and lower level, and a slightly different wavenumber. The degeneracy of these sublevels is 2*J+1. When the Lambda-doubling is too small there are 2 lines with exactly the same data (except the parities). One way to compact the list is to merge these lines and double the gf-value 2*(2*J+1)*f.

For some transitions Lambda-doubling does not exist (if Lambda=0, i.e if one of the states is a sigma state).

-- UlrikeHeiter 2009-02-06 08:37:27 - Lambda-doubled lines have been merged according to BP's comment above.

The new files are in Uppsala at /h19/ulrike/Molecules/Data/TiO/linelist??_all_nodoubling.dat.gz

The merging code is at /h19/ulrike/Molecules/Data/TiO/tio_plez_rm_doubling.pro

ValdWiki: TiO (last edited 2012-05-04 17:16:40 by UlrikeHeiter)