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The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions

Author

Listed:
  • M. Jutzi

    (Physics Institute, Space Research and Planetary Sciences, Center for Space and Habitability, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland)

  • E. Asphaug

    (School of Earth and Space Exploration, Arizona State University, PO Box 876004, Tempe, Arizona 85287, USA)

  • P. Gillet

    (Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL) Station 1, 1015 Lausanne, Switzerland)

  • J.-A. Barrat

    (Université de Bretagne Occidentale, Institut Universitaire Européen de la Mer, CNRS UMR 6538, Place Nicolas Copernic, 29280 Plouzané, France)

  • W. Benz

    (Physics Institute, Space Research and Planetary Sciences, Center for Space and Habitability, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland)

Abstract

Three-dimensional simulations of the global evolution of asteroid 4 Vesta under two overlapping planet-scale collisions closely reproduce its observed shape; but expected large areas of olivine-rich rocks and pure diogenites are not observed on the surface, possibly implying that the outer ∼100 km is composed mainly of a basaltic crust (eucrites) with ultramafic intrusions (diogenites).

Suggested Citation

  • M. Jutzi & E. Asphaug & P. Gillet & J.-A. Barrat & W. Benz, 2013. "The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions," Nature, Nature, vol. 494(7436), pages 207-210, February.
    • Handle: RePEc:nat:nature:v:494:y:2013:i:7436:d:10.1038_nature11892
    DOI: 10.1038/nature11892
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