Planets with radii between that of the Earth and Neptune (hereafter referred to as 'sub-
Neptunes') are found in close-in orbits around more than half of all Sun-like stars,. However …

Astronomers have discovered thousands of planets outside the Solar System, most of which
orbit stars that will eventually evolve into red giants and then into white dwarfs. During the …

Context. Teegarden's Star is the brightest and one of the nearest ultra-cool dwarfs in the
solar neighbourhood. For its late spectral type (M7. 0 V), the star shows relatively little …

Ultra-hot Jupiters orbit very close to their host star and consequently receive strong
irradiation, causing their atmospheric chemistry to be different from the common gas giants …

Spectroscopy of transiting exoplanets can be used to investigate their atmospheric
properties and habitability. Combining radial velocity (RV) and transit data provides …

Neptune-sized planets exhibit a wide range of compositions and densities, depending on
factors related to their formation and evolution history, such as the distance from their host …

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 …

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 …

Temperate Earth-sized exoplanets around late-M dwarfs offer a rare opportunity to explore
under which conditions planets can develop hospitable climate conditions. The small stellar …

We report the development of MuSCAT3, a four channel simultaneous imager installed on
the 2m Faulkes Telescope North at Haleakala Observatory on Maui, Hawai'i. MuSCAT3 has …