Evaluation of Astrophysically Useful Parameters for Strontium Monohydride and Deuteride

Abstract

The Franck-Condon factors and r-centroids which are very closely related to transition probabilities, have been evaluated by the more reliable numerical integration procedure for the band systems B^{2}sum - X^{2}sum, C^{2}sum -X^{2}sum and F^{2}sum - X^{2}sum of astrophysical molecules strontium monohydride and strontium deuteride using an adequate potential. The Franck-Condon factors are more intense, particularly for the Δ ν = 0 bands, for all the systems examined here. Thus the bands of the molecules are expected to be present in sunspot spectra, SC-stars, cool M-giant stars and other prominent astrophysical sources.