Friday 12 Jul 2019[Journal Club] Molecular diffusion in the atmospheres of hot Jupiters

Elise Evans -

4th Floor Interaction area, Physics building 11:15-11:30


Molecular diffusion is a transport process that occurs in an atmosphere in hydrostatic equilibrium. It occurs due to a concentration gradient and a temperature gradient in the atmosphere as well as molecules having different molecular buoyancies. It was previously assumed in ATMO that the diffusion was only driven by the concentration gradient which leads to smooth steady-state concentrations in the upper atmosphere.  In this talk I will describe how I have implemented the other factors driving molecular diffusion into ATMO, the effects this had on the compositions and how these results compare to other models.


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