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Journal Articles Space Science Reviews Year : 2022

Distinguishing the Origin of Asteroid (16) Psyche

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Linda T. Elkins-Tanton
  • Function : Author
Erik Asphaug
  • Function : Author
James F. Bell
  • Function : Author
Carver J. Bierson
  • Function : Author
Bruce G. Bills
  • Function : Author
William F. Bottke
  • Function : Author
Samuel W. Courville
  • Function : Author
Steven D. Dibb
  • Function : Author
Insoo Jun
  • Function : Author
David J. Lawrence
  • Function : Author
Simone Marchi
  • Function : Author
Timothy J. Mccoy
  • Function : Author
Jose M. G. Merayo
  • Function : Author
Rona Oran
  • Function : Author
Joseph G. O'Rourke
  • Function : Author
Ryan S. Park
  • Function : Author
Patrick N. Peplowski
  • Function : Author
Thomas H. Prettyman
  • Function : Author
Carol A. Raymond
  • Function : Author
Benjamin P. Weiss
  • Function : Author
Mark A. Wieczorek
Maria T. Zuber
  • Function : Author

Abstract

The asteroid (16) Psyche may be the metal-rich remnant of a differentiated planetesimal, or it may be a highly reduced, metal-rich asteroidal material that never differentiated. The NASA Psyche mission aims to determine Psyche's provenance. Here we describe the possible solar system regions of origin for Psyche, prior to its likely implantation into the asteroid belt, the physical and chemical processes that can enrich metal in an asteroid, and possible meteoritic analogs. The spacecraft payload is designed to be able to discriminate among possible formation theories. The project will determine Psyche's origin and formation by measuring any strong remanent magnetic fields, which would imply it was the core of a differentiated body; the scale of metal to silicate mixing will be determined by both the neutron spectrometers and the filtered images; the degree of disruption between metal and rock may be determined by the correlation of gravity with composition; some mineralogy (e.g., modeled silicate/metal ratio, and inferred existence of low-calcium pyroxene or olivine, for example) will be detected using filtered images; and the nickel content of Psyche's metal phase will be measured using the GRNS.
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Dates and versions

insu-03656896 , version 1 (02-05-2022)

Licence

Attribution - CC BY 4.0

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Linda T. Elkins-Tanton, Erik Asphaug, James F. Bell, Carver J. Bierson, Bruce G. Bills, et al.. Distinguishing the Origin of Asteroid (16) Psyche. Space Science Reviews, 2022, 218, ⟨10.1007/s11214-022-00880-9⟩. ⟨insu-03656896⟩
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