Article Dans Une Revue Acta Astronautica Année : 2026

Aetheras: Characterising exoplanetary atmospheric escape with NIR and UV spectroscopy

Jo Ann Egger
Maja Marminge
Elise Wright Knutsen

Résumé

To date, many exoplanets have been discovered which exhibit distinct characteristics not observed within our own Solar System, raising numerous unresolved questions regarding their compositions, atmospheres, formation processes, and evolutionary pathways.

Several missions have been dedicated to enhance the understanding of the exoplanets like James Webb and Hubble Space Telescopes. However, they have a limited spectral range and resolution to allow for a complete characterisation of atmospheric dynamics. The Aetheras mission proposal was developed at the Summer School Alpbach 2023 and presents a satellite mission to overcome these limitations to better understand the formation, evolution and characteristics of exoplanets. This mission aims to unravel key enigmas in contemporary

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hal-05282551 , version 1 (25-09-2025)

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Marius Anger, Aksel Søren Beltoft, Federico Biassoni, Johanna Noria Brecher, Antoine Corne, et al.. Aetheras: Characterising exoplanetary atmospheric escape with NIR and UV spectroscopy. Acta Astronautica, 2026, 238, pp.300-319. ⟨10.1016/j.actaastro.2025.08.042⟩. ⟨hal-05282551⟩
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