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Table 1

Atmospheric models computed in the present work.

Model XH2 XH2O XCH4 Clouds Tholin hazes Figs.


r m n p WFC3 data All data
(mbar) (μm) (cm-3) (mbar) (ν = 12) (ν = 24)

Cloud-covered < 10 8.53 67.2 15, 16

Pure Rayleigh 1 0 0 12.3 92.7 16
1 0 0 100 8.59 24.9 16
1 0 0 10 8.51 11.6 16

H2-rich 1 1% 0.1% 237 352 15, 17
1 1% 0 108 213 15, 17
1 100 ppm 0 58.6 147 15, 17
1 100 ppm 0 100 12.4 69.2 15, 17
1 100 ppm 0 10 9.27 66.1 15, 17
1 1 ppm 0 100 8.26 59.4 17

H2O-rich 100 ppm 1 0 8.79 73.1 15, 17

Hazy H2 1 100 ppm 0 0.1 1000 100–1 26.0 135 18
1 100 ppm 0 0.1 1000 0.1–0.001 33.8 218
1 100 ppm 0 0.1 100 100–1 59.6 318 15, 18
1 100 ppm 0 0.1 100 0.1–0.001 126 943
1 100 ppm 0 0.1 10 100–1 51.9 199 18
1 100 ppm 0 0.1 10 0.1–0.001 56.9 468
1 100 ppm 0 0.5 10 100–1 24.9 99.6 18
1 100 ppm 0 0.5 10 0.1–0.001 33.8 116 18

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