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astro-ph.EP2025
Ever Elusive Exospheres: One Probable Detection and Two Non-Detections of Hα Transits in Young Systems
Reilly P. Milburn, Andrew W. Mann, Keighley Rockcliffe +5
Gaps in the exoplanet population, such as the Neptunian Desert, point to the importance of mass-loss in sculpting the radii of close-in exoplanets. Young planets (500Myr) offer…
astro-ph.EP2025
An Ultra-Short Period Super-Earth and Sub-Neptune Spanning the Radius Valley Orbiting the Kinematic Thick Disk Star TOI-2345
Yoshi Nike Emilia Eschen, Thomas G. Wilson, Andrea Bonfanti +94
A crucial chemical link between stars and their orbiting exoplanets is thought to exist. If universal, this connection could affect the formation and evolution of all planets. Ther…
astro-ph.IM2025
CHEOPS Ground Segment: Systems and Automation for Mission and Science Operations
Alexis Heitzmann, MarÃa J. González Bonilla, Anja Bekkelien +15
The CHEOPS, the first ESA small-class mission, has been performing photometric astronomical observations with a particular emphasis on exoplanetary science for the past five years.…