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 …

Ultrahot giant exoplanets receive thousands of times Earth's insolation 1, 2. Their high-
temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying …

Hot gas giant exoplanets can lose part of their atmosphere due to strong stellar irradiation,
and these losses can affect their physical and chemical evolution. Studies of atmospheric …

GJ 3470b is a warm Neptune transiting an M-dwarf star at the edge of the evaporation
desert. It offers the possibility of investigating how low-mass, close-in exoplanets evolve …

Context. WASP-121 b is a hot Jupiter that was recently found to possess rich emission (day
side) and transmission (limb) spectra, suggestive of the presence of a multitude of chemical …

ABSTRACT CHEOPS (CHaracterising ExOPlanet Satellite) is an ESA S-class mission that
observes bright stars at high cadence from low-Earth orbit. The main aim of the mission is to …

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 …

We present near-infrared spectropolarimetric observations of a sample of 43 weakly to
moderately active M dwarfs, carried with SPIRou at the Canada–France–Hawaii Telescope …

The distribution of close-in exoplanets is shaped by a complex interplay between
atmospheric and dynamical processes. The Desert-Rim Exoplanets Atmosphere and …

Context. The rotation period of stars is an important parameter together with mass, radius,
and effective temperature. It is an essential parameter for any radial velocity monitoring, as …