Experimental and computational investigation of an ionic pathway to the formation of silicon sulphide in the interstellar mediumMatteo Michielan, Luca Mancini, Daniela Ascenzi, Marzio Rosi, Paolo Tosi, Fernando Pirani, Nadia Balucani, Dimitrios Skouteris and Cecilia CeccarelliA&A, 698 (2025) A205DOI: https://doi.org/10.1051/0004-6361/202554558