Computer Science
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008em%26p..102..331h&link_type=abstract
Earth, Moon, and Planets, Volume 102, Issue 1-4, pp. 331-336
Computer Science
Meteors, Meteoroids, Meteorite, Methods: Laboratory
Scientific paper
Laboratory based laser ablation techniques can be used to study the size of the luminous region, predict spectral features, estimate the luminous efficiency factor, and assess the role of chemically differentiated thermal ablation. A pulsed Nd:YAG laser was used to ablate regions from ordinary and carbonaceous chondrite meteorites. CCD cameras and a digital spectroscope were used to measure the size and spectrum from the cloud of vaporised material. Scanning electron microscope (SEM) based energy dispersive x-ray spectroscopy (EDS) provided elemental abundance values in ablated and unablated regions. These results indicated some degree of differential ablation, with the most significant effect being significant loss of carbon from carbonaceous chondrites. This work suggests that a carbon matrix may play the role of the glue in the two component dustball model.
Ehrman James M.
Hawkes Robert L.
Hoyland J. D.
Milley E. P.
Pettipas C. L.
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