A semiempirical model of catastrophic breakup processes

Details A semiempirical model of catastrophic breakup processes A semiempirical model of catastrophic breakup processes

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...77..187p&link_type=abstract

Icarus (ISSN 0019-1035), vol. 77, Jan. 1989, p. 187-212. Research supported by CNR and MPI.

Astronomy and Astrophysics

Astronomy

43

Asteroids, Astronomical Models, Hypervelocity Impact, Semiempirical Equations, Ejection, Fragmentation, Planetology, Asteroids, Laboratory Studies, Impacts, Experiments, Physical Properties, Size, Shape, Rotation, Parameters, Fragmentation, Simulations, Models, Velocity, Ejection, Geometry, Calculations, Fragments, Eos Asteroids, Energy, Comparisons, Koronis Asteroids, Themis Asteroids

Scientific paper

The results of laboratory impact experiments and asteroid properties are presently interpreted in terms of a semiempirical theory that derives fragment properties observed on the basis of a suitable target material velocity field arising from the impact explosion and the target's original rotation. Numerical simulations based on a study of local target properties as a function of initial positions in the target have shown fragment rotation to arise from the superposition of velocity curve field and fragment shape asphericity effects; observed properties of main asteroid families are well reproduced by the model.

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