Collisional Formation and Modeling of Asteroid Families

Michel, Patrick; Richardson, Derek C.; Durda, Daniel D.; Jutzi, Martin; Asphaug, Erik (2015). Collisional Formation and Modeling of Asteroid Families. In: Michel, Patrick; Demeo, Francesca E.; Bottke, William F. (eds.) Asteroids IV (pp. 341-354). University of Arizona Press

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In the last decade, thanks to the development of sophisticated numerical codes, major breakthroughs have been achieved in our understanding of the formation of asteroid families by catastrophic disruption of large parent bodies. In this review, we describe numerical simulations of asteroid collisions that reproduced the main properties of families, accounting for both the fragmentation of an asteroid at the time of impact and the subsequent gravitational interactions of the generated fragments. The simulations demonstrate that the catastrophic disruption of bodies larger than a few hundred meters in diameter leads to the formation of large aggregates due to gravitational reaccumulation of smaller fragments, which helps explain the presence of large members within asteroid families. Thus, for the first time, numerical simulations successfully reproduced the sizes and ejection velocities of members of representative families. Moreover, the simulations provide constraints on the family dynamical histories and on the possible internal structure of family members and their parent bodies.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences > Theoretical Astrophysics and Planetary Science (TAPS)
08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Jutzi, Martin

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering
500 Science

ISBN:

9780816532131

Publisher:

University of Arizona Press

Language:

English

Submitter:

Martin Jutzi

Date Deposited:

22 Jun 2016 09:42

Last Modified:

07 Sep 2016 14:55

ArXiv ID:

1502.03929v1

BORIS DOI:

10.7892/boris.81935

URI:

https://boris.unibe.ch/id/eprint/81935

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