Planet-planet scattering in presence of a companion star

  title={Planet-planet scattering in presence of a companion star},
  author={Francesco Marzari and M. Nagasawa and Krzyszof Go'zdziewski},
Planet-Planet (P–P) scattering is a leading dynamical mechanism invoked to explain the present orbital distribution of exoplanets. Many stars belong to binary systems, therefore it is important to understand how this mechanism works in presence of a companion star. We focus on systems of three planets orbiting the primary star and estimate the timescale for instability finding that it scales with the keplerian period for systems that have the same ratio between inner planet and binary semi… 



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