Exoplanet orbital eccentricities derived from LAMOST–Kepler analysis
Exoplanet orbital eccentricities derived from LAMOST–Kepler analysis
The nearly circular (mean eccentricity <e>~0.06) and coplanar (mean mutual inclination <i>~3 deg) orbits of the Solar System planets motivated Kant and Laplace to put forth the hypothesis that planets are formed in disks, which has developed into the widely accepted theory of planet formation. Surprisingly, the first several hundred …