Hot Jupiters were the first exoplanets to be discovered around main sequence stars and
astonished us with their close-in orbits. They are a prime example of how exoplanets have …

We provide a brief review of many aspects of the planetary physics of hot Jupiters. Our aim is
to cover most of the major areas of current study while providing the reader with additional …

The population of small, close-in exoplanets is bifurcated into super-Earths and sub-
Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with …

The size of a planet is an observable property directly connected to the physics of its
formation and evolution. We used precise radius measurements from the California-Kepler …

The distribution of planet sizes encodes details of planet formation and evolution. We
present the most precise planet size distribution to date based on Gaia parallaxes, Kepler …

A new piece of evidence supporting the photoevaporation-driven evolution model for low-
mass, close-in exoplanets was recently presented by the California–Kepler Survey. The …

Abstract In 2017, the California-Kepler Survey (CKS) published its first data release (DR1) of
high-resolution optical spectra of 1305 planet hosts. Refined CKS planet radii revealed that …

Recent observations identify a valley in the radius distribution of small exoplanets, with
planets in the range 1.5–2.0 R⊕ significantly less common than somewhat smaller or larger …

Our understanding of planet formation has been rapidly evolving in recent years. The
classical planet formation theory, developed when the only known planetary system was our …

Studies of exoplanet demographics require large samples and precise constraints on
exoplanet host stars. Using the homogeneous Kepler stellar properties derived using the …