The Mie representation for Mercury’s magnetic field - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Earth Planets and Space Année : 2021

The Mie representation for Mercury’s magnetic field

S. Toepfer
  • Fonction : Auteur
Y. Narita
  • Fonction : Auteur
K. -H. Glassmeier
  • Fonction : Auteur
D. Heyner
  • Fonction : Auteur
P. Kolhey
  • Fonction : Auteur
U. Motschmann
  • Fonction : Auteur

Résumé

The parameterization of the magnetospheric field contribution, generated by currents flowing in the magnetosphere is of major importance for the analysis of Mercury’s internal magnetic field. Using a combination of the Gauss and the Mie representation (toroidal–poloidal decomposition) for the parameterization of the magnetic field enables the analysis of magnetic field data measured in current carrying regions in the vicinity of Mercury. In view of the BepiColombo mission, the magnetic field resulting from the plasma interaction of Mercury with the solar wind is simulated with a hybrid simulation code and the internal Gauss coefficients for the dipole, quadrupole and octupole field are reconstructed from the data, evaluated along the prospective trajectories of the Mercury Planetary Orbiter (MPO) using Capon’s method. Especially, it turns out that a high-precision determination of Mercury’s octupole field is expectable from the future analysis of the magnetic field data measured by the magnetometer on board MPO. Furthermore, magnetic field data of the MESSENGER mission are analyzed and the reconstructed internal Gauss coefficients are in reasonable agreement with the results from more conventional methods such as the least-square fit.
Fichier principal
Vignette du fichier
s40623-021-01386-4.pdf (1.9 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03284462 , version 1 (27-08-2021)

Licence

Paternité

Identifiants

Citer

S. Toepfer, Y. Narita, K. -H. Glassmeier, D. Heyner, P. Kolhey, et al.. The Mie representation for Mercury’s magnetic field. Earth Planets and Space, 2021, 73 (1), ⟨10.1186/s40623-021-01386-4⟩. ⟨hal-03284462⟩
254 Consultations
19 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More