Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu

P. Michel; R.-L. Ballouz; O. S. Barnouin; M. Jutzi; K. J. Walsh; B. H. May; C. Manzoni; D. C. Richardson; S. R. Schwartz; S. Sugita; S. Watanabe; H. Miyamoto; M. Hirabayashi; W. F. Bottke; H. C. Connolly; M. Yoshikawa; D. S. Lauretta

doi:10.1038/s41467-020-16433-z

Nature Communications (May 2020)

Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu

P. Michel,
R.-L. Ballouz,
O. S. Barnouin,
M. Jutzi,
K. J. Walsh,
B. H. May,
C. Manzoni,
D. C. Richardson,
S. R. Schwartz,
S. Sugita,
S. Watanabe,
H. Miyamoto,
M. Hirabayashi,
W. F. Bottke,
H. C. Connolly,
M. Yoshikawa,
D. S. Lauretta

Affiliations

P. Michel: Universite Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de la Recherche Scientifique, Laboratoire Lagrange
R.-L. Ballouz: Lunar and Planetary Laboratory, University of Arizona
O. S. Barnouin: The Johns Hopkins University Applied Physics Laboratory
M. Jutzi: Physics Institute, University of Bern, NCCR PlanetS, Gesellsschaftsstrasse 6, 3012
K. J. Walsh: Southwest Research Institute
B. H. May: London Stereoscopic Company
C. Manzoni: London Stereoscopic Company
D. C. Richardson: Department of Astronomy, University of Maryland
S. R. Schwartz: Lunar and Planetary Laboratory, University of Arizona
S. Sugita: Department of Earth and Planetary Science, School of Science, The University of Tokyo
S. Watanabe: Graduate School of Environmental Studies, Nagoya University
H. Miyamoto: Department of System Innovation, School of Engineering, The University of Tokyo
M. Hirabayashi: Department of Aerospace Engineering, Auburn University
W. F. Bottke: Southwest Research Institute
H. C. Connolly: Lunar and Planetary Laboratory, University of Arizona
M. Yoshikawa: Institute of Space and Astronautical Sciences, JAXA
D. S. Lauretta: Lunar and Planetary Laboratory, University of Arizona

DOI: https://doi.org/10.1038/s41467-020-16433-z
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 11

Abstract

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Asteroid shapes and hydration levels can serve as tracers of their history and origin. Here, the authors show top shape asteroids can form directly through gravitational reaccumulation and rubble piles formed in a single disruption can have similar porosities but variable degrees of hydration.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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