Dynamical instabilities in systems of multiple short-period planets are likely driven by secular chaos: a case study of Kepler-102
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We investigated the dynamical stability of high-multiplicity Kepler and K2 planetary systems. Our numerical simulations find instabilities in ~ 20% of the cases on a wide range of timescales (up to 5×109 orbits) and over an unexpectedly wide range of initial ... ...
