Europlanet Science Congress 2021
Virtual meeting
13 – 24 September 2021
Europlanet Science Congress 2021
Virtual meeting
13 September – 24 September 2021
EPSC Abstracts
Vol. 15, EPSC2021-419, 2021
https://doi.org/10.5194/epsc2021-419
Europlanet Science Congress 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Simulating haze radiative feedback in general circulation models of hot Jupiters

Maria Steinrueck1, Tommi Koskinen1, Panayotis Lavvas2, Xi Zhang3, and Xianyu Tan4
Maria Steinrueck et al.
  • 1University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ 85721, United States of America (msteinrueck@email.arizona.edu)
  • 2Groupe de Spectrométrie Moleculaire et Atmosphérique, UMR CNRS 7331, Université de Reims Champagne-Ardenne, F-51687 Reims, France
  • 3Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064, USA
  • 4Atmospheric, Ocean, and Planetary Physics, Department of Physics, Oxford University, OX1 3PU, UK

Photochemically produced hazes provide a possible explanation for aerosol features in the transmission spectra of many hot Jupiters, especially those with relatively low equilibrium temperatures. Recent simulations of photochemical hazes as passive tracers in a 3D general circulation model demonstrate that the distribution of hazes can be highly inhomogeneous, with horizontal abundance variations of over an order of magnitude. At the same time, one-dimensional radiative transfer models show that absorption and scattering by hazes can change the atmospheric temperature profile by several hundred Kelvin. The additional heating and cooling have the potential to significantly affect atmospheric circulation. In this talk, we present new GCM simulations of hot Jupiter HD 189733b that include radiative feedback from hazes. A focus will be on changes in the atmospheric temperature structure and circulation. We will then compare the 3D haze distribution from previous simulations with radiatively passive hazes to the new haze distribution in simulations that include haze radiative feedback. Finally, we predict transit spectra based on the simulations and compare them to observations.

How to cite: Steinrueck, M., Koskinen, T., Lavvas, P., Zhang, X., and Tan, X.: Simulating haze radiative feedback in general circulation models of hot Jupiters, Europlanet Science Congress 2021, online, 13–24 Sep 2021, EPSC2021-419, https://doi.org/10.5194/epsc2021-419, 2021.

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