He: Upper limit
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G-B: High resolution IR | The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres. No evidence of enhanced evaporation in young planets2024, J. Orell-Miquel, F. Murgas et al. |
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He: Detection
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G-B: High resolution IR | Detection of Atmospheric Escape from Four Young Mini Neptunes2022, Michael Zhang, Heather A. Knutson et al. |
0.84 ± 0.17% absorption in a young planet. Signal is blueshifted. |