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Browsing by Author "Armitage, Philip J."

Browsing by Author "Armitage, Philip J."

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  • A Bayesian neural network predicts the dissolution of compact planetary systems 
    Cranmer, Miles; Tamayo, Daniel; Rein, Hanno; Battaglia, Peter; Hadden, Samuel; Armitage, Philip J.; Ho, Shirley; Spergel, David N. (2021)
    We introduce a Bayesian neural network model that can accurately predict not only if, but also when a compact planetary system with three or more planets will go unstable. Our model, trained directly from short N-body time ...
  • Predicting the long-term stability of compact multiplanet systems 
    Tamayo, Daniel; Cranmer, Miles; Hadden, Samuel; Rein, Hanno; Battaglia, Peter; Obertas, Alysa; Armitage, Philip J.; Ho, Shirley; Spergel, David N.; Gilbertson, Christian; Hussain, Naireen; Silburt, Ari; Jontof-Hutter, Daniel; Menou, Kristen (2020)
    We combine analytical understanding of resonant dynamics in two-planet systems with machine-learning techniques to train a model capable of robustly classifying stability in compact multiplanet systems over long timescales ...
  • A Three-dimensional View of Turbulence: Constraints on Turbulent Motions in the HD 163296 Protoplanetary Disk Using DCO+ 
    Flaherty, Kevin M.; Hughes, A. Meredith; Rose, Sanaea C.; Simon, Jacob B.; Qi, Chunhua; Andrews, Sean M.; Kóspál, Ágnes; Wilner, David J.; Chiang, Eugene; Armitage, Philip J.; Bai, Xue-ning (2017)
    Gas kinematics are an important part of the planet formation process. Turbulence influences planetesimal growth and migration from the scale of submicron dust grains through gas-giant planets. Radio observations of resolved ...

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