The geophysical environment of Bennu

D. J. Scheeres, S. G. Hesar, S. Tardivel, M. Hirabayashi, D. Farnocchia, J. W. McMahon, S. R. Chesley, O. Barnouin, R. P. Binzel, W. F. Bottke, M. G. Daly, J. P. Emery, C. W. Hergenrother, Dante Lauretta, J. R. Marshall, P. Michel, M. C. Nolan, K. J. Walsh

Research output: Contribution to journalArticle

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Abstract

An analysis of the surface and interior state of Asteroid (101955) Bennu, the target asteroid of the OSIRIS-REx sample return mission, is given using models based on Earth-based observations of this body. These observations have enabled models of its shape, spin state, mass and surface properties to be developed. Based on these data the range of surface and interior states possible for this body are evaluated, assuming a uniform mass distribution. These products include the geopotential, surface slopes, near-surface dynamical environment, interior stress states and other quantities of interest. In addition, competing theories for its current shape are reviewed along with the relevant planned OSIRIS-REx measurements.

Original languageEnglish (US)
Pages (from-to)116-140
Number of pages25
JournalIcarus
Volume276
DOIs
Publication statusPublished - 2016

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Keywords

  • Asteroid Bennu
  • Geophysics

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Scheeres, D. J., Hesar, S. G., Tardivel, S., Hirabayashi, M., Farnocchia, D., McMahon, J. W., ... Walsh, K. J. (2016). The geophysical environment of Bennu. Icarus, 276, 116-140. https://doi.org/10.1016/j.icarus.2016.04.013