During the first billion years of their life, exoplanet atmospheres are modified by different
atmospheric escape phenomena that can strongly affect the shape and morphology of the …

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 …

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 …

The diversity of exoplanets has been linked to the disc environment in which they form,
where the host star metallicity and the formation pathways play a crucial role. In the context …

The connection between outer gas giants and inner super-Earths reflects their formation and
evolutionary histories. Past work exploring this link has suggested a tentative positive …

Context. The detection of the He I λ10 830 Å triplet in exoplanet atmospheres has opened a
new window for probing planetary properties, including atmospheric escape. Unlike Lyman …

Exoplanet demographic surveys have revealed that close-in (≲ 1 au) small planets orbiting
stars in the Milky Way's thick disk are∼ 50% less abundant than those orbiting stars in the …

Context. Planetary systems with close-in giant planets can experience magnetic star-planet
interactions that modify the activity levels of their host stars. The induced activity is known to …

In this work, we present high-resolution (R∼ 100,000), high signal-to-noise ratio (S/N∼ 800)
spectroscopic observations for the well-known, bright, extremely metal-poor, carbon …

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 …