Sublimation as an effective mechanism for flattened lobes of (486958) Arrokoth

@article{Zhao2020SublimationAA,
  title={Sublimation as an effective mechanism for flattened lobes of (486958) Arrokoth},
  author={Y. Zhao and L. Rezac and Y. Skorov and S. C. Hu and N. Samarasinha and J. Li},
  journal={Nature Astronomy},
  year={2020},
  volume={5},
  pages={139-144}
}
The New Horizons spacecraft’s flyby of Kuiper belt object (486958) Arrokoth revealed a bilobed shape with highly flattened lobes both aligned to its equatorial plane, and a rotational axis almost aligned to the orbital plane (obliquity ~99°) 1 – 4 . Arrokoth belongs to the cold classical Kuiper belt object population that occupies dynamically undisturbed orbits around the Sun, and as such is a primitive object that formed in situ. Therefore, whether its shape is primordial or evolutionary… Expand
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