Experimental evidence for amorphous carbon grains in comets.

Details Experimental evidence for amorphous carbon grains in comets. Experimental evidence for amorphous carbon grains in comets.

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989iaus..135p.437c&link_type=abstract

IAU Symposium No. 135: Interstellar dust: contributed papers, p. 437 - 442

Computer Science

Cometary Dust: Laboratory Simulations, Cometary Dust: Carbon, Comet 1986 Iii Halley

Scientific paper

Amorphous carbon grains similar to those produced in the laboratory, but with a higher hydrogen content, appear to be good candidates to simulate both the IR continuum emission and the 3.4 μm band measured for P/Halley. The comparison of the cometary features with those detected in laboratory for carbon grains seems to indicate that a prevalent diamond-like structure should be present in cometary particles. This kind of solid particles seem also suitable to explain the daily and monthly variations of the 3.4 μm band intensity, relative to the continuum, and - at the same time - to fulfill the abundance constraints.

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