Infrared spectroscopy of a carbon extract from the Orgueil meteorite

Details Infrared spectroscopy of a carbon extract from the Orgueil meteorite Infrared spectroscopy of a carbon extract from the Orgueil meteorite

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.315...77e&link_type=abstract

In ESA, Formation of Stars and Planets, and the Evolution of the Solar System p 77-80 (SEE N91-18922 10-90)

Astronomy and Astrophysics

Astronomy

1

Carbon, Chemical Composition, Infrared Spectroscopy, Interstellar Chemistry, Orgueil Meteorite, Chemical Analysis, Cosmic Dust, Infrared Astronomy, Interstellar Gas, Spectroscopic Analysis

Scientific paper

The three micro spectrum on the galactic center source IRS 7 is compared to a spectrum obtained on the deuterium rich organic polymer extracted from the Orgueil carbonaceous meteorite. The almost perfect match between the two spectra in the 3.4 micrometer region suggests that the chemical composition of the interstellar organic matter resembles that of the meteoritic polymer. The molecular structure of this matter from Orgueil is discussed in comparison with terrestrial kerogens. The fraction of cosmic carbon in this interstellar organic grain material can be calculated by assuming that the carbonaceous extract has the same C/H ratio as the interstellar molecules near IRS 7.

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