The rotation of a star and the revolutions of its planets are not necessarily aligned. This
article reviews the measurement techniques, key findings, and theoretical interpretations …

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 report on the masses, sizes, and orbits of the planets orbiting 22 Kepler stars. There are
49 planet candidates around these stars, including 42 detected through transits and 7 …

With the discovery of planets beyond our solar system 25 years ago, exoplanet research has
expanded dramatically, with new state-of-the-art ground-based and space-based missions …

Giant exoplanets orbiting very close to their parent star (hot Jupiters) are subject to tidal
forces expected to synchronize their rotational and orbital periods on short timescales (tidal …

In recent years, the advent of a new generation of radial velocity instruments has allowed us
to detect planets with increasingly lower mass and to break the one Earth-mass barrier. Here …

In this paper we search for distant massive companions to known transiting gas giant
planets that may have influenced the dynamical evolution of these systems. We present new …

Solar system planets move on almost circular orbits. In strong contrast, many massive gas
giant exoplanets travel on highly elliptical orbits, whereas the shape of the orbits of smaller …

We present the results of a survey aimed at discovering and studying transiting planets with
orbital periods shorter than one day (ultra-short-period, or USP, planets), using data from the …

Abstract Observing the Rossiter–McLaughlin effect during a planetary transit allows the
determination of the angle λ between the sky projections of the star's spin axis and the …