A systematic mid-infrared spectroscopic study of thermally processed SO 2 ices.

Autor: Mifsud DV; Centre for Astrophysics and Planetary Science, School of Physics and Astronomy, University of Kent, Canterbury, CT2 7NH, UK. mifsud.duncan@atomki.hu.; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Herczku P; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Rahul KK; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Ramachandran R; Atomic, Molecular, and Optical Physics Division, Physical Research Laboratory, Ahmedabad 380009, India., Sundararajan P; Atomic, Molecular, and Optical Physics Division, Physical Research Laboratory, Ahmedabad 380009, India., Kovács STS; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Sulik B; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Juhász Z; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Rácz R; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Biri S; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary., Kaňuchová Z; Astronomical Institute, Slovak Academy of Sciences, Tatranská Lomnica, SK-059 60, Slovakia., McCullough RW; Department of Physics and Astronomy, School of Mathematics and Physics, Queen's University Belfast, Belfast, BT7 1NN, UK., Sivaraman B; Atomic, Molecular, and Optical Physics Division, Physical Research Laboratory, Ahmedabad 380009, India., Ioppolo S; Centre for Interstellar Catalysis (InterCat), Department of Physics and Astronomy, Aarhus University, Aarhus DK-8000, Denmark.; School of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, UK., Mason NJ; Centre for Astrophysics and Planetary Science, School of Physics and Astronomy, University of Kent, Canterbury, CT2 7NH, UK. mifsud.duncan@atomki.hu.; Atomic and Molecular Physics Laboratory, Institute for Nuclear Research (Atomki), Debrecen H-4026, Hungary.
Jazyk: angličtina
Zdroj: Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2023 Oct 04; Vol. 25 (38), pp. 26278-26288. Date of Electronic Publication: 2023 Oct 04.
DOI: 10.1039/d3cp03196a
Abstrakt: The use of mid-infrared spectroscopy to characterise the chemistry of icy interstellar and Solar System environments will be exploited in the near future to better understand the chemical processes and molecular inventories in various astronomical environments. This is, in part, due to observational work made possible by the recently launched James Webb Space Telescope as well as forthcoming missions to the outer Solar System that will observe in the mid-infrared spectroscopic region ( e.g. , the Jupiter Icy Moons Explorer and the Europa Clipper missions). However, such spectroscopic characterisations are crucially reliant upon the generation of laboratory data for comparative purposes. In this paper, we present an extensive mid-infrared characterisation of SO 2 ice condensed at several cryogenic temperatures between 20 and 100 K and thermally annealed to sublimation in an ultrahigh-vacuum system. Our results are anticipated to be useful in confirming the detection (and possibly thermal history) of SO 2 on various Solar System bodies, such as Ceres and the icy Galilean moons of Jupiter, as well as in interstellar icy grain mantles.
Databáze: MEDLINE