Analyses of volatile organic compounds and refractory organic residues coming from the heating of interstellar ice analogues
1 Groupe Astrochimie de l’équipe “Spectrométries et Dynamique Moléculaire”, laboratoire “Physique des Interactions Ioniques et Moléculaires”, UMR CNRS 7345, Université d’Aixmarseille, Centre Saint-Jérôme, case 252, Marseille, France http://sites.univprovence.fr/piim/spip.php?rubrique93
2 Univ Paris-Sud, “Astrochimie et Origines”, Institut d’Astrophysique Spatiale, UMR 8617, F-91405 Orsay, France
3 CNRS, F-91405 Orsay, France
4 Institut de Planétologie et d'Astrophysique de Grenoble IPAG/PLANETO, Bâtiment D de physique - BP 53 38041 Grenoble cedex 9 France
* Corresponding author: firstname.lastname@example.org
We use Very High Resolution Mass Spectrometry for analyses of the soluble fraction of yellow stuff produced in laboratory. Their analyses show that they are composed of molecules with high molecular weight (m/z>4000). Fragmentations suggest that grafted molecules constitute a part of them. Hexamethylenetetramine derivatives have also been detected. First results and further analytical developments will be presented to facilitate the understanding of the residue composition and of its chemical evolution. Furthermore, we present for the first time the concept of the VAHIIA project which concerns the analysis of volatiles coming from the heating of interstellar ice analogues.
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