Calculation of Intensity Ratios of Observed Infrared [Fe II] Lines

Details Calculation of Intensity Ratios of Observed Infrared [Fe II] Lines Calculation of Intensity Ratios of Observed Infrared [Fe II] Lines

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...711l.104d&link_type=abstract

The Astrophysical Journal Letters, Volume 711, Issue 2, pp. L104-L107 (2010).

Astronomy and Astrophysics

Astronomy

2

Atomic Data

Scientific paper

Two recent observational studies of the [Fe II] λ12567/λ16435 line ratio by Smith & Hartigan and Rodriguez-Ardila et al. have suggested that the available theoretical A-values could be incorrect to 10%-40%. We have carried out an extensive configuration interaction calculation of [Fe II] lines to investigate this claim, as well as the variability in observed line ratios for λ8617/λ9052 and λ8892/λ9227 of Dennefeld. For these transitions, we are generally in good agreement with the results of Nussbaumer & Storey, less so with those of Quinet et al. In comparison, the ratios derived from observations appear either to be less secure, or other factors influence those results.

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