EGU22-2575
https://doi.org/10.5194/egusphere-egu22-2575
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

The Mie representation for Mercury‘s magnetospheric currents

Simon Töpfer1, Yasuhito Narita2,3, Daniel Heyner3, Patrick Kolhey3, Karl-Heinz Glassmeier3,4, and Uwe Motschmann1,5
Simon Töpfer et al.
  • 1Institut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany (s.toepfer@tu-braunschweig.de)
  • 2Space Research Institute, Austrian Academy of Sciences, Graz, Austria
  • 3Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
  • 4Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany
  • 5DLR Institute of Planetary Research, Berlin, Germany

Poloidal–toroidal magnetic field decomposition is a useful application of the Mie representation for the reconstruction of Mercury‘s internal magnetic field. In addition, the decomposition method enables us to determine the current density observationally and unambiguously in the local region of magnetic field measurement. The application and the limits of the decomposition method are tested against the Mercury magnetic field simulation in view of BepiColombo‘s arrival at Mercury in 2025. The simulated magnetic field data are evaluated along the planned Mercury Planetary Orbiter (MPO) trajectories and the current system that is crossed by the spacecraft is extracted from the magnetic field measurements. Afterwards, the resulting currents are classified in terms of the established current system in the vicinity of Mercury.

 

Reference

  • Toepfer, S., Narita, Y., Exner, W., Heyner, D., Kolhey, P., Glassmeier, K. ‐H., Motschmann, U. (2021c)  The Mie representation for Mercury’s magnetospheric currents, Earth, Planets and Space 73:204. https://doi.org/10.1186/s40623-021-01536-8
  • Toepfer, S., Narita, Y., Glassmeier, K.-H., Heyner, D., Kolhey, P., Motschmann, U., Langlais, B. (2021a) The Mie representation for Mercury’s magnetic field, Earth Planets Space 73:65. https://doi.org/10.1186/s40623-021-01386-4

 

 

How to cite: Töpfer, S., Narita, Y., Heyner, D., Kolhey, P., Glassmeier, K.-H., and Motschmann, U.: The Mie representation for Mercury‘s magnetospheric currents, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-2575, https://doi.org/10.5194/egusphere-egu22-2575, 2022.

Comments on the display material

to access the discussion