The mass, orbit, and tidal evolution of the Quaoar–Weywot system

@article{Fraser2013TheMO,
  title={The mass, orbit, and tidal evolution of the Quaoar–Weywot system},
  author={W. Fraser and K. Batygin and M. Brown and A. Bouchez},
  journal={Icarus},
  year={2013},
  volume={222},
  pages={357-363}
}
Here we present new adaptive optics observations of the Quaoar–Weywot system. With these new observations we determine an improved system orbit. Due to a 0.39 day alias that exists in available observations, four possible orbital solutions are available with periods of ∼11.6, ∼12.0, ∼12.4, and ∼12.8 days. From the possible orbital solutions, system masses of 1.3–1.5 ± 0.1 × 10^(21) kg are found. These observations provide an updated density for Quaoar of 2.7–5.0 g cm^(−3). In all cases, Weywot… Expand
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