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Towards understanding the dynamical evolution of asteroid 25143 Itokawa: constraints from sample analysis
Earth, Planets and Space
  • Harold Connolly, Jr., Rowan University
  • Dante S. Lauretta
  • Kevin J. Walsh
  • Shogo Tachibana
  • William F. Bottke, Jr.
Document Type
Article
Version Deposited
Published Version
Publication Date
1-27-2015
DOI
10.1186/s40623-015-0185-3
Disciplines
Abstract

The data from the analysis of samples returned by Hayabusa from asteroid 25143 Itokawa are used to constrain the preaccretion history, the geological activity that occurred after accretion, and the dynamical history of the asteroid from the main belt to near-Earth space. We synthesize existing data to pose hypotheses to be tested by dynamical modeling and the analyses of future samples returned by Hayabusa 2 and OSIRIS-REx. Specifically, we argue that the Yarkosky-O’Keefe-Radzievskii-Paddack (YORP) effect may be responsible for producing geologically high-energy environments on Itokawa and other asteroids that process regolith and essentially affect regolith gardening.

Comments

Earth, Planets and Space is a SpringerOpen journal.

This article copyright Connolly et al.; licensee Springer.

Creative Commons License
Creative Commons Attribution 4.0
Published Citation

Connolly, H.C., Lauretta, D.S., Walsh, K.J., Tachibana, S. & Bottke, W.F. (2015). Towards understanding the dynamical evolution of asteroid 25143 Itokawa: contraints from sample analysis. Earth, Planets and Space 67:12.

Citation Information
Harold Connolly, Dante S. Lauretta, Kevin J. Walsh, Shogo Tachibana, et al.. "Towards understanding the dynamical evolution of asteroid 25143 Itokawa: constraints from sample analysis" Earth, Planets and Space (2015)
Available at: http://works.bepress.com/harold-connolly/1/