Tidal evolution in multiple planet systems: application to Kepler-62 and   Kepler-186
  A large number of observed exoplanets are part of multiple planet systems. Most of these systems are sufficiently close-in to be tidally evolving. In such systems, there is a competition between the excitation caused by planet-planet interactions and tidal damping. Using as an example two multiple planet systems, which host planets in the surface liquid water habitable zone (HZ): Kepler-62 and Kepler-186, we show the importance and effect of both planetary and stellar tides on the dynamical evolution of planets and on the climate of the HZ planets. 
Emeline Bolmont, Sean N. Raymond, J\'er\'emy Leconte, Alexandre   Correia and Elisa Quintana
astro-ph.EP