High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.
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51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution
High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.