EGU24-19629, updated on 11 Mar 2024
https://doi.org/10.5194/egusphere-egu24-19629
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Modelling Stellar Energetic Particles effects on the atmospheres of terrestrial (exo)planets: INCREASE

Lee Grenfell1, Nicolas Iro1, Miriam Sinnhuber2, Konstantin herbst3, Andreas Bartenschlager2, Klaus Scherer4, and Benjamin Taysum1
Lee Grenfell et al.
  • 1German Aerospace Center (DLR e.V.), Institute of Planetary Research, Berlin, Germany (iro.exoplanets@gmail.com)
  • 2Institut f ̈ur Meteorologie und Klimaforschung, Karlsruher Institut f ̈ur Technologie, 76344 Eggenstein-Leopoldshafen, Germany
  • 3Institut f ̈ur Experimentelle und Angewandte Physik, Christian-Albrechts-Universit ̈at zu Kiel, 24118 Kiel, Germany
  • 4Institut für Theoretische Physik IV, Ruhr-Universität Bochum, 44780 Bochum, Germany

We present numerical studies of star/planet interactions, specifically the effects of Stellar Energetic Particles (SEPs) on the atmospheres of terrestrial (exo)planets. This work was performed as part of the INCREASE project (INfluence of strong stellar particle Events and galactic Cosmic Rays on Exoplanetary AtmoSpherEs) funded by the German Research Council (DFG).

 

We have developed and applied a new Model Suite which couples magnetospheric and atmospheric propagation and interaction models PLANETOCOSMICS (Desorgher et al. 2006) and AtRIS (Banjac et al. 2019) with the atmospheric chemistry and climate models 1D-TERRA (e.g., Wunderlich et al. 2020) and ExoTIC (Sinnhuber et al., 2012).

 

We are able to assess the influence of the stellar activity on the planetary atmospheric structure, its chemical composition, and infer spectroscopic observables as well as the effects on biosignatures.

How to cite: Grenfell, L., Iro, N., Sinnhuber, M., herbst, K., Bartenschlager, A., Scherer, K., and Taysum, B.: Modelling Stellar Energetic Particles effects on the atmospheres of terrestrial (exo)planets: INCREASE, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-19629, https://doi.org/10.5194/egusphere-egu24-19629, 2024.