astronomy instrumentation 1exoplanet biosignatures 1habitable worlds observatory 1high-contrast imaging 1ultraviolet spectroscopy 1
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astro-ph.EP2026
Probing Atmospheric Escape Through the Near-Infrared Helium Triplet
C. Farret Jentink, V. Bourrier, Y. Carteret
The most productive tracer of exoplanetary atmospheric escape is the measurement of excess absorption in the near-infrared metastable helium triplet during transits. Atmospheric es…
astro-ph.EP2026
TOI-3862 b: A dense super-Neptune deep in the hot Neptune desert
Ilaria Carleo, Amadeo Castro-González, Enric Pallé +61
The structure and evolution of close-in exoplanets are shaped by atmospheric loss and migration processes, which give rise to key population features such as the hot Neptune desert…