It is demonstrated that there exists an angular momentum loss following catastrophic breakup due to asymmetric escape of fragments. This so-called angular momentum splash mechanism in catastrophic collisions is shown to cause a spindown relative to the postimpact spin rate computed without this effect. For asteroids about 100 km in diameter, there is a net spindown relative to the preimpact spin rate. The relevance of this effect to the spin evolution of asteroids of different sizes is examined.

Asteroid collisional evolution. I - Angular momentum splash - Despinning asteroids through catastrophic collisions

FARINELLA, PAOLO;PAOLICCHI, PAOLO
1990

Abstract

It is demonstrated that there exists an angular momentum loss following catastrophic breakup due to asymmetric escape of fragments. This so-called angular momentum splash mechanism in catastrophic collisions is shown to cause a spindown relative to the postimpact spin rate computed without this effect. For asteroids about 100 km in diameter, there is a net spindown relative to the preimpact spin rate. The relevance of this effect to the spin evolution of asteroids of different sizes is examined.
Cellino, A.; Zappala, V.; Davis, D. R.; Farinella, Paolo; Paolicchi, Paolo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/229938
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