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Characterization of large carbonaceous molecules in cosmic dust analogues and meteorites

Published online by Cambridge University Press:  12 October 2020

Hassan Sabbah Open the ORCID record for Hassan Sabbah [Opens in a new window] ,
Mickaël Carlos  and
Christine Joblin
Hassan Sabbah
Affiliation:
IRAP, Université de Toulouse, CNRS, CNES, Toulouse, France LCAR/IRSAMC, Université de Toulouse, CNRS, Toulouse, France
Mickaël Carlos
Affiliation:
IRAP, Université de Toulouse, CNRS, CNES, Toulouse, France LCAR/IRSAMC, Université de Toulouse, CNRS, Toulouse, France
Christine Joblin
Affiliation:
IRAP, Université de Toulouse, CNRS, CNES, Toulouse, France
Rights & Permissions [Opens in a new window]

Abstract

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We present a new experimental setup called AROMA (The Aromatic Research of Organics with Molecular Analyzer) based on the use of laser mass spectrometry techniques. We demonstrate the potential of AROMA for the analysis of meteoritic samples and cosmic dust analogues. Tens of peaks are identified in the mass spectra with notable discrepancies across the different samples. These discrepancies provide clues on the chemical history of each sample and are not a bias of our analysis. A double bound-equivalent (DBE) method is applied to sort the detected carbonaceous molecules into families of compounds. It reveals in addition of polycyclic aromatic hydrocarbons, the presence of other populations such as mixed aromatic-aliphatic species and carbon clusters.

Keywords

Astrochemistrydustsolar system: formationmethods: laboratorymethods: analytical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 103 - 106
Copyright
© International Astronomical Union 2020

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