Computed Electric Charges of Grains with Highly Irregular Shapes

Details Computed Electric Charges of Grains with Highly Irregular Shapes Computed Electric Charges of Grains with Highly Irregular Shapes

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007esasp.643..177a&link_type=abstract

Workshop on Dust in Planetary Systems (ESA SP-643). September 26-30 2005, Kauai, Hawaii. Editors: Krueger, H. and Graps, A., p.1

Computer Science

2

Scientific paper

The electric charges of highly irregular dust grains were computed. We find that, of all possible shapes, a sphere carries the lowest charge and "fluffy" grains, especially grains consisting of long rods, carry charges as high as kappa=30 times the charge of a spherical grain having the same volume and surface potential. We conclude that one tends to over-estimate a grain's size when deducing it from the grain's charge, unless the shape factor kappa is taken into account.

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