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Population of ground and lowest excited states of Sulfur via the dissociative recombination of SH+ in the diffuse interstellar medium

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Our previous study on dissociative recombination of ground state SH+ into 2Π states of SH is extended by taking into account the contribution of 4Π states recently explored by quantum… Click to show full abstract

Our previous study on dissociative recombination of ground state SH+ into 2Π states of SH is extended by taking into account the contribution of 4Π states recently explored by quantum chemistry methods. Multichannel quantum defect theory is employed for the computation of cross sections and rate coefficients for dissociative recombination, but also for vibrational excitation. Furthermore, we produce the atomic yields resulting from recombination, quantifying the generation of sulfur atoms in their ground (3P) and lowest excited (1D) states respectively.

Keywords: recombination; excited states; dissociative recombination; ground lowest; lowest excited

Journal Title: Monthly Notices of the Royal Astronomical Society
Year Published: 2022

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