Catastrophic disruptions revisited

Details Catastrophic disruptions revisited Catastrophic disruptions revisited

1999-07-09

arxiv.org/abs/astro-ph/9907117v1

Icarus 142:5-20,1999

Astronomy and Astrophysics

Astrophysics

To appear in Icarus

Scientific paper

10.1006/icar.1999.6204

We use a smooth particle hydrodynamics method (SPH) to simulate colliding rocky and icy bodies from cm-scale to hundreds of km in diameter, in an effort to define self-consistently the threshold for catastrophic disruption. Unlike previous efforts, this analysis incorporates the combined effects of material strength (using a brittle fragmentation model) and self-gravitation, thereby providing results in the ``strength regime'' and the ``gravity regime'', and in between. In each case, the structural properties of the largest remnant are examined.

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