Optical evolution of laboratory-produced organics - Applications to Phoebe, Iapetus, outer belt asteroids and cometary nuclei

Details Optical evolution of laboratory-produced organics - Applications to Phoebe, Iapetus, outer belt asteroids and cometary nuclei Optical evolution of laboratory-produced organics - Applications to Phoebe, Iapetus, outer belt asteroids and cometary nuclei

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...184..333a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 184, no. 1-2, Oct. 1987, p. 333-336.

Astronomy and Astrophysics

Astrophysics

44

Asteroid Belts, Comet Nuclei, Iapetus, Ion Irradiation, Organic Materials, Phoebe, Ion Beams, Room Temperature, Solar System, Planets, Comets, Comet Nuclei, Asteroids, Satellites, Phoebe, Iapetus, Optical Properties, Evolution, Organic Material, Laboratory Studies, Spectra, Ions, Bombardment, D Asteroids, C Asteroids, Comparisons, Carbonaceous Material, Irradiation, Reflectance, Transmission, Experiments, Analogs, Simulations, Hydrocarbons, Color, Saturn

Scientific paper

Optical and NIR spectra (0.3 - 2.5 μm) of organic materials, synthesized in the laboratory by ion beam bombardment, are presented. The spectral response of the organics changes as the ion fluence increases. They become darker and darker with increasing fluence. The authors suggest that bombardment by solar ions may produce both organic materials similar to those on D-type asteroids (and on the Iapetus leading hemisphere) and carbonaceous materials similar to those on C-type asteroids (and on Phoebe). The relevance of these experimental results in understanding the darkness of (some?) cometary nuclei is also outlined.

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