He: Upper limit
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G-B: High resolution IR | HET/HPF observations of Helium in warm, hot, and ultra-hot Jupiters2025, Jaume Orell-Miquel, Kyra Sampson et al. |
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He: Upper limit
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G-B: High resolution IR | DREAM: III.A helium survey in exoplanets on the edge of the hot Neptune desert with GIANO-B@TNG2023, G. Guilluy, V. Bourrier et al. |
Upper-limit with GIANO-B of 1.9% |