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Hervé Cottin, Kafika Saiagh, Dara Nguyen, Noël Grand, Yves Bénilan, Mégane Cloix, Patrice Coll, Marie-Claire Gazeau, Nicolas Fray, Diana Khalaf, François Raulin, Fabien Stalport, Nathalie Carrasco, Cyril Szopa, Didier Chaput, Marylène Bertrand, Frances Westall, Andrew Mattioda, Richard Quinn, Antonio Ricco, Orlando Santos, Giuseppe Antonio Baratta, Giovanni Strazzulla, Maria Elisabetta Palumbo, Aurélie Le Postollec, Michel Dobrijevic, Gaëlle Coussot, Flavie Vigier, Odile Vandenabeele-Trambouze, Sébastien Incerti & Thomas Berger

Photochemical studies in low Earth orbit for organic compounds related to small bodies, Titan and Mars.
Current and future facilities.

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Mots-clés : comète, milieu interstellaire, photochimie, Titan, Mars, metéorite

Abstract

The study of the evolution of organic matter subjected to space conditions, and more specifically to solar photons in the vacuum ultraviolet range (120-200 nm) has been undertaken in low Earth Orbit since the 90's, and implemented on various space platforms. The most recent exposure facilities are BIOPAN outside the Russian automatic capsules FOTON, and EXPOSE-E & -R (1&2) outside the International Space Station. They allow the photolysis of many different samples simultaneously, and provide us with valuable data about the formation and evolution of organic matter in the Solar System (meteorites, comets, Titan's atmosphere, the Martian surface...) and in the Interstellar Medium. They have been used by European teams in the recent past(ORGANIC on BIOPAN V-FOTON M2 and UVolution on BIOPAN VI-FOTON M3, PROCESS on EXPOSE-E, AMINO and ORGANICS on EXPOSE-R), and a new EXPOSE set is currently exposed outside the ISS (PSS on EXPOSE-R2). These existing tools are very valuable; however, they have significant limitations that limit their capabilities and scientific return. One of the most critical issues for current studies is the lack of any in-situ analysis of the evolution of the samples as a function of time. Only two measurements are available for the experiment: one before and one after the exposure. A significant step forward has been achieved with the O/OREOS NASA nanosatellite and the OREOcube ESA project with onboard UV-visible measurements. However, for organic samples, following the evolution of the samples would be more informative and provide greater insight with infrared measurements, which display specific patterns characteristic of major organic functionalities in the mid-infrared range (4000-1000 cm-1).

Keywords : comet, interstellar medium, photochemistry, Titan, Mars, meteorite

Pour citer cet article

Hervé Cottin, Kafika Saiagh, Dara Nguyen, Noël Grand, Yves Bénilan, Mégane Cloix, Patrice Coll, Marie-Claire Gazeau, Nicolas Fray, Diana Khalaf, François Raulin, Fabien Stalport, Nathalie Carrasco, Cyril Szopa, Didier Chaput, Marylène Bertrand, Frances Westall, Andrew Mattioda, Richard Quinn, Antonio Ricco, Orlando Santos, Giuseppe Antonio Baratta, Giovanni Strazzulla, Maria Elisabetta Palumbo, Aurélie Le Postollec, Michel Dobrijevic, Gaëlle Coussot, Flavie Vigier, Odile Vandenabeele-Trambouze, Sébastien Incerti & Thomas Berger, «Photochemical studies in low Earth orbit for organic compounds related to small bodies, Titan and Mars.», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 84 - Année 2015, Actes de colloques, Workshop d'astrochimie expérimentale, 60 - 73 URL : https://popups.uliege.be:443/0037-9565/index.php?id=4689.

A propos de : Hervé Cottin

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Kafika Saiagh

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Dara Nguyen

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Noël Grand

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Yves Bénilan

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Mégane Cloix

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Patrice Coll

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France et Institut Universitaire de France, 103 blvd St-Michel, 75005 Paris, France

A propos de : Marie-Claire Gazeau

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Nicolas Fray

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Diana Khalaf

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : François Raulin

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Fabien Stalport

LISA, University Paris Est-Créteil & Paris Diderot, UMR 7583 CNRS, Créteil, France

A propos de : Nathalie Carrasco

Institut Universitaire de France, 103 blvd St-Michel, 75005 Paris, France et LATMOS, Université Versailles St-Quentin, UPMC Univ. Paris 06, CNRS, 11 Blvd. D’Alembert, 78280 Guyancourt, France

A propos de : Cyril Szopa

LATMOS, Université Versailles St-Quentin, UPMC Univ. Paris 06, CNRS, 11 Blvd. D’Alembert, 78280 Guyancourt, France

A propos de : Didier Chaput

CNES, Centre spatial de Toulouse, Toulouse, France

A propos de : Marylène Bertrand

CBM, CNRS, UPR 4301, Orléans, France

A propos de : Frances Westall

CBM, CNRS, UPR 4301, Orléans, France

A propos de : Andrew Mattioda

NASA AMES Research Center, Moffet Field, CA, USA

A propos de : Richard Quinn

NASA AMES Research Center, Moffet Field, CA, USA

A propos de : Antonio Ricco

NASA AMES Research Center, Moffet Field, CA, USA

A propos de : Orlando Santos

NASA AMES Research Center, Moffet Field, CA, USA

A propos de : Giuseppe Antonio Baratta

INAF-Osservatorio Astrofisico di Catania, Italy

A propos de : Giovanni Strazzulla

INAF-Osservatorio Astrofisico di Catania, Italy

A propos de : Maria Elisabetta Palumbo

INAF-Osservatorio Astrofisico di Catania, Italy

A propos de : Aurélie Le Postollec

Université de Bordeaux, Laboratoire d'Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France et CNRS, Laboratoire d'Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France

A propos de : Michel Dobrijevic

Université de Bordeaux, Laboratoire d'Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France et CNRS, Laboratoire d'Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France

A propos de : Gaëlle Coussot

IBMM, Universités de Montpellier 1 & 2, Université de Montpellier 2, UMR 5247 CNRS, Montpellier, France

A propos de : Flavie Vigier

IBMM, Universités de Montpellier 1 & 2, Université de Montpellier 2, UMR 5247 CNRS, Montpellier, France

A propos de : Odile Vandenabeele-Trambouze

IBMM, Universités de Montpellier 1 & 2, Université de Montpellier 2, UMR 5247 CNRS, Montpellier, France

A propos de : Sébastien Incerti

CENBG, UMR 5797 CNRS, Gradignan, France

A propos de : Thomas Berger

German Aerospace Center, Institute of Aerospace Medicine, Cologne, Germany