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.

A SEMIEMPIRICAL MODEL OF CATASTROPHIC BREAKUP PROCESSES

PAOLICCHI, PAOLO;
1989

Abstract

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.
Paolicchi, Paolo; Cellino, A; Farinella, P; Zappala, V.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/13023
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