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Published online by Cambridge University Press: 12 April 2016
An enhancement of the electrostatic stress forces due to the charge concentration on a position with small radius of curvature on the surface of irregularly shaped particle causes the fragmentation of fluffy particle more than expected for a spherical particle. This mechanism may act to produce “dust clusters” as detected in comet P/Halley by Simpson et al. (1987) and also “dust swarms” near the Earth as reported in Fechtig(1982).