The Hydrodynamic Atmospheric Escape of 5 Gas Giant Exoplanets with He Absorption Signal
Many detected planets experience hydrodynamic atmospheric escape during some stage of their life. Most of those exoplanets are hot Jupiters and sub-Neptunes orbiting close to their stars. Traditionally, the escape in these evaporating planets has been studied by Lyman-α line absorption measurements taken by instruments from space. Very recently, a
Sánchez-Sánchez, D. et al.
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2025