We present the discovery and characterization of two transiting planets observed by TESS in
the light curves of the young and bright (V= 9.67) star HD73583 (TOI-560). We perform an …

Aims. We aim to constrain the origin of the non-detection of the metastable He I triplet at≈
10 830 Å obtained for the hot Jupiter WASP-80b. Methods. We measure the X-ray flux of …

The atmospheres of highly irradiated exoplanets are observed to undergo hydrodynamic
escape. However, due to strong pressures, stellar winds can confine planetary atmospheres …

Context. Observational breakthroughs in the field of exoplanets in the last decade have
motivated the development of numerous theoretical models, such as those describing …

High-energy stellar irradiation can photoevaporate planetary atmospheres, which can be
observed in spectroscopic transits of hydrogen lines. For the exoplanet HD189733b …

Lyman α transits have been detected from several nearby exoplanets and are one of our
best insights into the atmospheric escape process. However, due to ISM absorption, we …

Intense X-ray and ultraviolet stellar irradiation can heat and inflate the atmospheres of
closely orbiting exoplanets, driving mass outflows that may be significant enough to …

Strong atmospheric escape has been detected in several close-in exoplanets. As these
planets consist mostly of hydrogen, observations in hydrogen lines, such as Ly α and H α …

This paper presents simulations of the metastable helium (He*) observations of WASP-107b,
so far the highest signal-to-noise ratio detection that is confirmed by three different …

Using 3D radiative MHD simulations and Lyman-α transit calculations, we investigate the
effect of magnetic fields on the observational signatures of atmospheric escape in …