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Space Weather Storm Responses at Mars: Lessons from A Weakly Magnetized Terrestrial Planet

  • J. G. Luhmann (a1), C. F. Dong (a2), Y. J. Ma (a2), S. M. Curry (a1), Yan Li (a1), C. O. Lee (a1), T. Hara (a1), R. Lillis (a1), J. Halekas (a3), J. E. Connerney (a4), J. Espley (a4), D. A. Brain (a5), Y. Dong (a5), B. M. Jakosky (a5), E. Thiemann (a5), F. Eparvier (a5), F. Leblanc (a6), P. Withers (a7) and C. T. Russell (a8)...

Much can be learned from terrestrial planets that appear to have had the potential to be habitable, but failed to realize that potential. Mars shows evidence of a once hospitable surface environment. The reasons for its current state, and in particular its thin atmosphere and dry surface, are of great interest for what they can tell us about habitable zone planet outcomes. A main goal of the MAVEN mission is to observe Mars’ atmosphere responses to solar and space weather influences, and in particular atmosphere escape related to space weather ‘storms’ caused by interplanetary coronal mass ejections (ICMEs). Numerical experiments with a data-validated MHD model suggest how the effects of an observed moderately strong ICME compare to what happens during a more extreme event. The results suggest the kinds of solar and space weather conditions that can have evolutionary importance at a planet like Mars.

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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
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