Can sulfur implantation in interstellar ice analogs lead to the formation of sulfur-bearing organics?
Résumé
We present the results of the irradiation of interstellar ice analogs (H 2 O:NH 3 :CH 3 OH) with argon and sulfur energetic ions. The samples were generated and irradiated at 10 K, and were thick enough to ensure the projectiles were implanted in the ice, allowing the sulfur projectiles to become part of the ensuing chemistry. The samples were measured on-site with Fourier Transform Infra-Red (FT-IR) spectroscopy, and the organic residues were analyzed off-site through Very High Resolution Mass Spectrometry (VHRMS). The IR spectra did not reveal any difference between the Ar-irradiated and S-irradiated samples, but the VHRMS allowed to investigate the potential formation of sulfur-bearing organic compounds.
Origine : Fichiers éditeurs autorisés sur une archive ouverte