Table 3.

Parameters for Atmospheric Simulations

			Surface flux (cm−2 s−1)		Surface mixing ratio
Planet mass	CO2 mixing ratio	Tsurf(K)	CH4	H2	CH4	H2
1 M⊕	0.03	303.5	6.8×108	8.6×109	2.5×10−6	4.7×10−4
	0.1	308.3			2.1×10−6	4.5×10−4
5 M⊕	0.03	314.2	1.3×109	1.7×1010	4.1×10−6	4.5×10−4
	0.1	320.5			3.7×10−6	4.6×10−4