5
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      The Space Environment and Atmospheric Joule Heating of the Habitable Zone Exoplanet TOI700-d

      Preprint

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          We investigate the space environment conditions near the Earth-size planet TOI~700~d using a set of numerical models for the stellar corona and wind, the planetary magnetosphere, and the planetary ionosphere. We drive our simulations using a scaled-down stellar input and a scaled-up solar input in order to obtain two independent solutions. We find that for the particular parameters used in our study, the stellar wind conditions near the planet are not very extreme -- slightly stronger than that near the Earth in terms of the stellar wind ram pressure and the intensity of the interplanetary magnetic field. Thus, the space environment near TOI700-d may not be extremely harmful to the planetary atmosphere, assuming the planet resembles the Earth. Nevertheless, we stress that the stellar input parameters and the actual planetary parameters are unconstrained, and different parameters may result in a much greater effect on the atmosphere of TOI700-d. Finally, we compare our results to solar wind measurements in the solar system and stress that modest stellar wind conditions may not guarantee atmospheric retention of exoplanets.

          Related collections

          Author and article information

          Journal
          23 May 2020
          Article
          2005.11587
          4e469448-78f5-45b6-b5ef-27ccd1e82bde

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          accepted to ApJ
          astro-ph.SR astro-ph.EP physics.space-ph

          Planetary astrophysics,Space Physics,Solar & Stellar astrophysics
          Planetary astrophysics, Space Physics, Solar & Stellar astrophysics

          Comments

          Comment on this article