Fig. 5

Redistribution efficiency η (ratio of night to day side outgoing thermal emission) as a function of atmospheric total pressure (ps) for Gl 581 c (black circles) and HD 85512 b (gray squares). η = 0 implies no energy redistribution at all, whereas an homogeneous thermal emission would yield η = 1. The star symbol shows the redistribution efficiency of the Ω = Ωorb/5 Gl 581 c case.
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