Ethane clathrate hydrate infrared signatures for solar system remote sensing E Dartois, F Langlet To cite this version: E Dartois, F Langlet. Ethane clathrate hydrate infrared signatures for solar system remote sensing. Icarus, Elsevier, 2021. hal-03159998 HAL Id: hal-03159998 https://hal.archives-ouvertes.fr/hal-03159998 Submitted on 4 Mar 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Ethane clathrate hydrate infrared signatures for solar system remote sensing. E. Dartois1, F. Langlet2, 1 Institut des Sciences Moléculaires d’Orsay, CNRS, Université Paris-Saclay, Bât 520, Rue André Rivière, 91405 Orsay, France e-mail:
[email protected] 2 Institut d’Astrophysique Spatiale (IAS), UMR8617, CNRS, Université Paris-Saclay, Bât. 121, 91405 Orsay, France keywords: Planetary ices, IR spectroscopy, Clathrate hydrate, Ethane, Remote sensing To appear in Icarus Abstract their retention time scales in solar system bodies, and also mod- ify their release conditions. b=The hydrate term is sometimes Hydrocarbons such as methane and ethane are present in many used as a semantic shortcut to designate clathrate hydrates but solar system objects, including comets, moons and planets. The must not be confused neither with hydrates nor with ice mixtures interaction of these hydrocarbons with water ice at low temper- where a molecule is interacting with water ice and not necessar- atures could lead to the formation of inclusion compounds, such ily mediated via an ordered crystalline cage.