Irradiation of methanol ice on a sulfur-rich dust analogue at 25 K: a mid-infrared spectroscopic study

Key Points

• The research aims to explore how methanol ice interacts with cosmic radiation on sulfur-rich dust analogues.
• Irradiation of methanol-rich ices with cosmic rays and stellar winds
• Use of mid-infrared spectroscopy to analyze the molecular products
• Temperature maintained at 25 K during experiments
• Novel sulfur-bearing molecular products were synthesized in the ice phase.
• Irradiation effects produced detectable changes in the spectral characteristics of the ice.