New Dataset for Molecular Ions of Astrophysical Importance

Atomic and molecular (A&M) datasets, databases and data ecosystems are gaining increasing importance for diagnostics, creation of models and simulations of complex physical processes, and interpretation of data provided by measurements (Marinkovic et al., 2017). A&M data can be used to model and comprehend stellar processes, including nucleosynthesis, radiation, and the formation of complex molecules in space, and also in the interstellar medium (Snow, T. P. & McCall, B. J. (2006)). Precision spectroscopy of molecular ions has applications in astrochemistry, quantum state controlled chemical reactions, and measurements of fundamental constants (Vazquez-Carson et al., 2022; Brown et al., 2016). Such accurate spectroscopy measurements open the path for search for astrophysical presence of small molecules like SiH+, CaH+, etc. We investigated optical (photodissociative) processes involving calcium monohydride ions, and collected cross section dataset for the range of parameters which cover modeling of abovementioned environments. Acknowledgments The article is partially based upon work conducted during STSM funded by COST Action CA18212 Molecular Dynamics in the GAS phase (MD-GAS).