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 hierarchical triple-body approximation has useful applications to a variety of systems
from planetary and stellar scales to supermassive black holes. In this approximation, the …

Abstract The Transiting Exoplanet Survey Satellite (TESS) is finding transiting planet
candidates around bright, nearby stars across the entire sky. The large field of view …

High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

We present exoplanet occurrence rates estimated with approximate Bayesian computation
for planets with radii between 0.5 and 16 R⊕ and orbital periods between 0.78 and 400 …

We use radial velocity (RV) observations to search for long-period gas giant companions in
systems hosting inner super-Earth (1–4 R⊕, 1–10 M⊕) planets to constrain formation and …

The dynamical influence of binary companions is expected to profoundly influence planetary
systems. However, the difficulty of identifying planets in binary systems has left the …

We conducted a Doppler survey at Keck combined with NIRC2 K-band adaptive optics (AO)
imaging to search for massive, long-period companions to 123 known exoplanet systems …

For stars with unresolved companions, motions of the centre of light and that of mass
decouple, causing a single-source astrometric model to perform poorly. We show that such …

The first discovered extrasolar worlds—giant," hot Jupiter" planets on short-period orbits—
came as a surprise to solar system–centric models of planet formation, prompting the …