A partially differentiated interior for (1) Ceres deduced from its gravity field and shape

R. S. Park (), A. S. Konopliv, B. G. Bills, N. Rambaux, J. C. Castillo-Rogez, C. A. Raymond, A. T. Vaughan, A. I. Ermakov, M. T. Zuber, R. R. Fu, M. J. Toplis, C. T. Russell, A. Nathues and F. Preusker
Additional contact information
R. S. Park: Jet Propulsion Laboratory, California Institute of Technology
A. S. Konopliv: Jet Propulsion Laboratory, California Institute of Technology
B. G. Bills: Jet Propulsion Laboratory, California Institute of Technology
N. Rambaux: IMCCE, Observatoire de Paris—PSL Research University, Sorbonne Universités—UPMC Université Paris 06, Université Lille 1, CNRS
J. C. Castillo-Rogez: Jet Propulsion Laboratory, California Institute of Technology
C. A. Raymond: Jet Propulsion Laboratory, California Institute of Technology
A. T. Vaughan: Jet Propulsion Laboratory, California Institute of Technology
A. I. Ermakov: Atmospheric and Planetary Sciences, Massachusetts Institute of Technology
M. T. Zuber: Atmospheric and Planetary Sciences, Massachusetts Institute of Technology
R. R. Fu: Lamont-Doherty Earth Observatory, Columbia University
M. J. Toplis: Institut de Recherche en Astrophysique et Planetologie, Université de Toulouse
C. T. Russell: Institute of Geophysics and Planetary Physics, University of California
A. Nathues: Max Planck Institute for Solar System Research
F. Preusker: Institute of Planetary Research, DLR

Nature, 2016, vol. 537, issue 7621, 515-517

Abstract: Gravity and shape measurements for Ceres obtained from the Dawn spacecraft mission show that it is in hydrostatic equilibrium with its inferred normalized mean moment of inertia of 0.37, suggesting that Ceres has a rocky chondritic core overlaid by a volatile-rich icy shell.

Date: 2016
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DOI: 10.1038/nature18955

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