On the solar oscillator strength of SiH⁺

Abstract

Rather contrasting values of the oscillator strengths for the (0,0) band of SiH⁺ molecules for the A ¹II – X¹ ∑⁺ transition have been reported in the literature. We investigate these with the help of a new set of solar photospheric models,abundances and molecular parameters. The result are found to be in agreement with the earlier solar studies. In view of the extremely weak nature of the SiH⁺ features, it appears probable to scale up the solar oscillator strengths by a factor of 2.