Natural solid bitumens as possible analogs of cometary and asteroid organics

Details Natural solid bitumens as possible analogs of cometary and asteroid organics Natural solid bitumens as possible analogs of cometary and asteroid organics

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..981m&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 981.

Computer Science

Bitumens, Cometary Atmospheres, Asteroids, Comet Nuclei, Rosetta Mission, X Ray Diffraction, Halley'S Comet, Nuclear Magnetic Resonance

Scientific paper

The study of the cometary nucleus composition will be one of the main goals of the Rosetta mission. To interpret the spectral properties of cometary surface one needs to have spectral library of the relevant materials, in particular, organics. For this purpose, we have performed spectral reflectance measurements on natural solid oil bitumens (asphaltites, kerites, anthraxolites). The samples were also characterized by chemical analyses, solid-state C-13 NMR, and XRD. In the near-IR region, spectral parameters have been found which make it possible to spectrally derive carbon aromaticities, H/C, or C/(C+H+N+S+O) atomic ratios, and even some structural properties.

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