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Collisional stripping of Mercury's mantle

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1988 English Publisher:Elsevier BVJournal:Icarus, volume 74, pages 516-528 (issn: 0019-1035,

Authors: Benz, Willy; Slattery, Wayne L.; Cameron, A. G. W.;

doi: 10.1016/0019-1035(88)90118-2

Collisional stripping of Mercury's mantle

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Abstract

A three-dimensional smoothed-particle hydrocode is the basis of the present numerical simulations of conditions under which a giant collision between a proto-Mercury and a planet one-sixth its size would lead to the loss of most of the silicate mantle of Mercury and thereby account for its anomalously high density. A head-on collision at 20 km/sec, and an off-axis impact parameter of half the radius of the proto-Mercury at 35 km/sec, are approximately equal in damage yielded; both will yield a remnant whose characteristics are those of the present Mercury.

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