Light-curve observations have shown that most asteroids are non-axially symmetrical in shape, probably as a result of fragmentation undergone by objects with negligible gravitational binding. The authors report here results from hypervelocity experiments performed at ≡10 km s-1 against free-falling bodies. They found that, regardless of the very different experimental conditions, the shape distribution obtained is in good agreement with that of the main-belt asteroids of diameter smaller than ≡100 km. This distribution is not consistent with either the symmetrical shapes of the gravity-dominated asteroids, or the elongated Apollo-Amor objects.

Shapes of asteroids compared with fragments from hypervelocity impact experiments

PAOLICCHI, PAOLO;
1984

Abstract

Light-curve observations have shown that most asteroids are non-axially symmetrical in shape, probably as a result of fragmentation undergone by objects with negligible gravitational binding. The authors report here results from hypervelocity experiments performed at ≡10 km s-1 against free-falling bodies. They found that, regardless of the very different experimental conditions, the shape distribution obtained is in good agreement with that of the main-belt asteroids of diameter smaller than ≡100 km. This distribution is not consistent with either the symmetrical shapes of the gravity-dominated asteroids, or the elongated Apollo-Amor objects.
Capaccioni, F; Cerroni, P; Coradini, M; Farinella, P; Flamini, E; Martelli, G; Paolicchi, Paolo; SMITH P., N; Zappala, V.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/7446
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