We report the discovery and characterization of a small planet, TOI-1408 c, on a 2.2 day orbit
located interior to a previously known hot Jupiter, TOI-1408 b (P= 4.42 days, M= 1.86±0.02 …

Context. Short-period giant planets (P≲ 10 days, M p> 0.1 MJ) are frequently found to be
solitary compared to other classes of exo-planets. Small inner companions to giant planets …

Measurements of the obliquities in exoplanet systems have revealed some remarkable
architectures, some of which are very different from the Solar System. Nearly 200 obliquity …

Context. Among the thousands of exoplanets discovered to date, approximately a few
hundred gas giants on short-period orbits are classified as 'lonely'and only a few are in a …

Context. Co-orbital objects, also known as trojans, are frequently found in simulations of
planetary system formation. In these configurations, a planet shares its orbit with other …

Exoplanet transits contain substantial information about the architecture of a system. By
fitting transit lightcurves we can extract dynamical parameters and place constraints on the …

The radius valley, ie a dearth of planets with radii between 1.5 and 2 Earth radii, provides
insights into planetary formation and evolution. Using homogenously revised planetary …

TOI-2818 b is a hot Jupiter orbiting a slightly evolved G-type star on a 4.04-day orbit that
shows transit timing variations (TTVs) suggestive of a decreasing orbital period. In the most …

Empirical exoplanet mass–radius relations have been used to study the demographics and
compositions of small exoplanets for many years. However, the heterogeneous nature of …

Context. Hot Jupiters (HJs) with close-by planetary companions are rare, with only a handful
of them having been discovered so far. This could be due to their suggested dynamical …