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 …

The basic geometry of the Solar System—the shapes, spacings, and orientations of the
planetary orbits—has long been a subject of fascination as well as inspiration for planet …

We present empirical measurements of the radii of 116 stars that host transiting planets.
These radii are determined using only direct observables—the bolometric flux at Earth, the …

Planets with short orbital periods (roughly under 10 days) are common around stars like the
Sun,. Stars expand as they evolve and thus we expect their close planetary companions to …

Astrophysical fluid bodies that orbit close to one another induce tidal distortions and flows
that are subject to dissipative processes. The spin and orbital motions undergo a coupled …

The amount of ultraviolet irradiation and ablation experienced by a planet depends strongly
on the temperature of its host star. Of the thousands of extrasolar planets now known, only …

We study tidal dissipation in stars with masses in the range 0.1–1.6 M⊙ throughout their
evolution, including turbulent effective viscosity acting on equilibrium tides and inertial …

The fates of planetary systems provide unassailable insights into their formation and
represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main …

Aims. We study the dependence of protoplanetary disk evolution on stellar mass using a
large sample of young stellar objects in nearby young star-forming regions. Methods. We …

In the past few years, significant advances have been made in understanding the
distributions of exoplanet populations and the architecture of planetary systems. We review …