Hypervelocity dust impulses on the Comet Halley probes

Details Hypervelocity dust impulses on the Comet Halley probes Hypervelocity dust impulses on the Comet Halley probes

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34.1087w&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 34, Nov. 1986, p. 1087-1089.

Physics

8

Cosmic Dust, Halley'S Comet, Hypervelocity Impact, Interplanetary Spacecraft, Coma, Giotto Mission, Mass, Penetration, Sublimation

Scientific paper

Energy and momentum arguments lead to useful bounds on the effective impulse of dust grains impacting the high velocity space probes passing through Comet Halley's dust coma. Impulse enhancement by a factor of 8-10 above the impacting momentum is favored, while the marginal mass for dust grain penetration of the Giotto bumper shield is 4-5 micrograms. The reduced impulse to the bumper from grains that penetrate it is assessed, in relation to interpretation of data from the Giotto DIDSY momentum sensors.

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