The collisional evolution of asteroids is discussed in a critical review of observational, statistical, and theoretical investigations from the period 1973-1983. Biases such as underestimation of the proportion of small asteroids and overestimation of short-period large-amplitude objects are identified in the current data base; the importance of self-gravitation for the shape and rotation of asteroids is indicated; the dominant role of catastrophic impacts is stressed; and the problems posed by the slow rotation of the small asteroids, the bimodal period distribution of the Apollo-Amor-Aten asteroids, and large sizes and/or relative velocities of the family fragments are considered.

Collisional evolution of asteroids

PAOLICCHI, PAOLO
1983

Abstract

The collisional evolution of asteroids is discussed in a critical review of observational, statistical, and theoretical investigations from the period 1973-1983. Biases such as underestimation of the proportion of small asteroids and overestimation of short-period large-amplitude objects are identified in the current data base; the importance of self-gravitation for the shape and rotation of asteroids is indicated; the dominant role of catastrophic impacts is stressed; and the problems posed by the slow rotation of the small asteroids, the bimodal period distribution of the Apollo-Amor-Aten asteroids, and large sizes and/or relative velocities of the family fragments are considered.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/230998
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