Planetary Gamma-Ray Spectroscopy of a Comet Surface

Details Planetary Gamma-Ray Spectroscopy of a Comet Surface Planetary Gamma-Ray Spectroscopy of a Comet Surface

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..173b&link_type=abstract

Lunar and Planetary Science, volume 27, page 173

Computer Science

Comets, Gamma-Rays, Rosetta, Simulation Calculations

Scientific paper

Planetary gamma-ray spectroscopy is a very capable tool to explore the surface of a comet nucleus. The gamma rays emitted from the surface carry qualitative and quantitative information on many elements present in the surface. We studied the gamma-ray emission of comets with different chemical compositions and surface geometries. Monte Carlo calculations were performed to simulate the cosmic-ray interactions with the comet surface and the subsequent emission of gamma rays. Our calculations show that the evaluation of gamma-ray spectra provide fairly accurate information on concentrations of all major elements. The planned gamma-ray measurements that will be carried out during the ESA comet mission Rosetta, will contribute to the detailed investigation of the surface of a comet and in conclusion to its history and origin.

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