Same as Figure 6 but for the SO₂-bearing atmospheres of T-1 b. Solid, dashed, and dotted lines indicate that 100 ppm, 0.1%, or 1% SO₂, respectively, was added to the bottom layer of the atmosphere. When including SO₂, T-1 b only had stable, realistic atmospheres for H₂O–CO₂ outgassed, mixed CO₂–CO, and mixed O₂–H₂O–CO₂ compositions. However, excessive heat redistribution rules out these compositions for T-1 b based on the currently available emission data (T. P. Greene et al. 2023; E. Ducrot et al. 2025; M. Gillon et al. 2026).