A General Circulation Model for Gaseous Exoplanets with Double-Gray Radiative Transfer

Understand

We present a new version of our code for modeling the atmospheric circulation on gaseous exoplanets, now employing a "double-gray" radiative transfer scheme, which self-consistently solves for fluxes and heating throughout the atmosphere, including the emerging (observable) infrared flux.

• We separate the radiation into infrared and optical components, each with its own absorption coefficient, and solve standard two-stream radiative transfer equations.
• We use a constant optical absorption coefficient, while the infrared coefficient can scale as a powerlaw with pressure.
• Here we describe our new code in detail and demonstrate its utility by presenting a generic hot Jupiter model.