EUV, you are Not Alone - Joule Heating in the Atmospheres of Exoplanets

Short-orbit terrestrial exoplanets are expected to experience high EUV radiation that would heat and inflate their atmosphere to a point where a strong atmospheric loss occurs. Due to the close proximity to the host star, these exoplanets also experience extreme space environment conditions, which include very high density and interplanetary magnetic field strength that can be orders of magnitude higher than those near the Earth. The extreme space environment may lead to an extreme Joule heating in the upper atmosphere, which may be comparable or even larger than that caused by the intense EUV radiation. In my talk, I will present analytical and numerical calculations of the expected Joule heating in the atmosphere of Trappist-1 e and other exoplanets and will discuss the potential consequences.

Note Day: Sunday instead of Wednesday, to allow for the IPS on Wedensday

Note Location: Resnick Seminar Room, 2nd Floor