Orbital relaxation and excitation of planets tidally interacting with white dwarfs

  title={Orbital relaxation and excitation of planets tidally interacting with white dwarfs},
  author={Dimitri Veras and Michael Efroimsky and Valeri V. Makarov and Gwena{\"e}l Bou{\'e} and Vera Wolthoff and Sabine Reffert and Andreas Quirrenbach and P. E. Tremblay and Boris T. G{\"a}nsicke},
  journal={Monthly Notices of the Royal Astronomical Society},
Observational evidence of white dwarf planetary systems is dominated by the remains of exo-asteroids through accreted metals, debris discs, and orbiting planetesimals. However, exo-planets in these systems play crucial roles as perturbing agents, and can themselves be perturbed close to the white dwarf Roche radius. Here, we illustrate a procedure for computing the tidal interaction between a white dwarf and a near-spherical solid planet. This method determines the planet’s inward and/or… 

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