Carbonaceous material by ion irradiation in space

Details Carbonaceous material by ion irradiation in space Carbonaceous material by ion irradiation in space

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...266..434s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 266, no. 1, p. 434-438.

Astronomy and Astrophysics

Astrophysics

44

Astronomical Spectroscopy, Carbon, Cosmic Rays, Interstellar Matter, Ion Irradiation, Energetic Particles, Infrared Spectra, Raman Spectra, Stellar Mass Accretion

Scientific paper

In this paper we present a detailed experimental study of the evolution, driven by ion irradiation, of carbonaceous material from frozen gas to a refractory molecular solid. Under further irradiation the latter changes to a polymer like material and ultimately to amorphous carbon. The techniques used for the analysis are 'in situ' IR and Raman spectroscopy and remote Elastic Recoil Detection Analysis (ERDA). The results are applied to demonstrate that polymer-like and amorphous carbons are abundantly formed on interstellar grain mantles and in comets by cosmic energetic particles irradiation.

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