The Origin of the Moon Within a Terrestrial Synestia

  title={The Origin of the Moon Within a Terrestrial Synestia},
  author={Simon J. Lock and Sarah T. Stewart and Michail I. Petaev and Zo{\"e} M. Leinhardt and Mia J T Mace and Stein B. Jacobsen and Matija {\'C}uk},
  journal={Journal of Geophysical Research: Planets},
  pages={910 - 951}
  • S. Lock, S. Stewart, M. Ćuk
  • Published 28 February 2018
  • Physics, Geology
  • Journal of Geophysical Research: Planets
The giant impact hypothesis remains the leading theory for lunar origin. However, current models struggle to explain the Moon's composition and isotopic similarity with Earth. Here we present a new lunar origin model. High‐energy, high‐angular‐momentum giant impacts can create a post‐impact structure that exceeds the corotation limit, which defines the hottest thermal state and angular momentum possible for a corotating body. In a typical super‐corotation‐limit body, traditional definitions of… 
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