Articles | Volume 41, issue 1
Regular paper
31 May 2023
Regular paper |  | 31 May 2023

Statistical distribution of mirror-mode-like structures in the magnetosheaths of unmagnetised planets – Part 1: Mars as observed by the MAVEN spacecraft

Cyril Simon Wedlund, Martin Volwerk, Christian Mazelle, Sebastián Rojas Mata, Gabriella Stenberg Wieser, Yoshifumi Futaana, Jasper Halekas, Diana Rojas-Castillo, César Bertucci, and Jared Espley

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Cited articles

Ala-Lahti, M. M., Kilpua, E. K. J., Dimmock, A. P., Osmane, A., Pulkkinen, T., and Souček, J.: Statistical analysis of mirror mode waves in sheath regions driven by interplanetary coronal mass ejection, Ann. Geophys., 36, 793–808,, 2018. a
Allison, M. and McEwen, M.: A post-Pathfinder evaluation of areocentric solar coordinates with improved timing recipes for Mars seasonal/diurnal climate studies, Planet. Space Sci., 48, 215–235,, 2000. a, b
Bertucci, C., Mazelle, C., Crider, D. H., Mitchell, D. L., Sauer, K., Acuña, M. H., Connerney, J. E. P., Lin, R. P., Ness, N. F., and Winterhalter, D.: MGS MAG/ER observations at the magnetic pileup boundary of Mars: draping enhancement and low frequency waves, Adv. Space Res., 33, 1938–1944,, 2004. a, b, c, d
Brinca, A. L. and Romeiras, F. J.: On the stability of stationary nongyrotropic distribution functions: Coupling and purely growing waves, J. Geophys. Res., 103, 9275–9284,, 1998. a
Chamberlin, P. C., Woods, T. N., and Eparvier, F. G.: Flare Irradiance Spectral Model (FISM): Flare component algorithms and results, Space Weather, 6, 1–16,, 2008 . a
Short summary
Mirror modes are magnetic bottles found in the space plasma environment of planets contributing to the energy exchange with the solar wind. We use magnetic field measurements from the NASA Mars Atmosphere and Volatile EvolutioN mission to detect them around Mars and show how they evolve in time and space. The structures concentrate in two regions: one behind the bow shock and the other closer to the planet. They compete with other wave modes depending on the solar flux and heliocentric distance.