Collisional stripping of Mercury's mantle

Details Collisional stripping of Mercury's mantle Collisional stripping of Mercury's mantle

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..516b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 74, June 1988, p. 516-528. SNSF-supported research.

Astronomy and Astrophysics

Astronomy

110

Mercury (Planet), Planetary Evolution, Planetary Structure, Protoplanets, Astronomical Models, Planetary Mantles, Mercury (Planet), Collisions, Mantle, Density, Hypotheses, Simulations, Numerical Methods, Impacts, Velocity, Size, Parameters, Ejecta, Models, Hydrodynamics, Diagrams, Perturbations

Scientific paper

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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