Evidence item

The study reports near-equilibrium chemistry, approximately 10× solar metallicity, and a 3-sigma C/O upper limit below 0.52. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 24418

Source: A Clearer View of HAT-P-1 b: JWST NIRSpec G395H Reveals Water, Carbon Dioxide, and Possibly Hydrogen Sulfide · locator {} · excerpt hash sha256:1b50bf12d7b6fb27ab051c908025b6a1740822753cb2b5f1839617cc2fa9c10b

The joint constraints on metallicity and C/O ratio favor near-equilibrium chemistry, with a metallicity of approximately 10 times solar and a 3-sigma upper limit on C/O of less than 0.52.