OSSOS XX: The Meaning of Kuiper Belt Colors

  title={OSSOS XX: The Meaning of Kuiper Belt Colors},
  author={David Nesvorn{\'y} and David Vokrouhlick{\'y} and Mike Alexandersen and Michele T. Bannister and Laura E. Buchanan and Ying-Tung Chen and Brett J. Gladman and Stephen D. J. Gwyn and JJ. Kavelaars and J. M. Petit and Megan E. Schwamb and Kathryn Volk},
  journal={The Astronomical Journal},
Observations show that 100 km class Kuiper Belt objects (KBOs) can be divided into (at least) two color groups, red (R; g − i < 1.2) and very red (VR; g − i > 1.2), reflecting a difference in their surface composition. This is thought to imply that KBOs formed over a relatively wide range of radial distance, r. The cold classicals at 42 au < r < 47 au are predominantly VR, and known Neptune Trojans at r ≃ 30 au are mostly R. Intriguingly, however, the dynamically hot KBOs show a mix of R and VR… 

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  • Physics, Geology
    Annual Review of Astronomy and Astrophysics
  • 2018
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  • 2015


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