• Corpus ID: 254043631

Resonant Dynamical Friction: Analytical Description

  title={Resonant Dynamical Friction: Analytical Description},
  author={Yonadav Barry Ginat and Taras Panamarev and Bence Kocsis and Hagai B. Perets},
We derive an analytical model for the so-called phenomenon of ‘resonant dynamical friction’, where a disc of stars around a super-massive black hole interacts with a massive perturber, so as to align its inclination with the disc’s orientation. We show that it stems from singular behaviour of the orbit-averaged equations of motion, which leads to a rapid alignment of the argument of the ascending node Ω of each of the disc stars, with that of the perturber, Ω p , with a phase-difference of 90… 

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