EGU24-3154, updated on 08 Mar 2024
https://doi.org/10.5194/egusphere-egu24-3154
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Solar wind magnetic holes in the inner and outer heliosphere

Tomas Karlsson1, Henriette Trollvik1, Andrew Dimmock2, Lina Hadid3, Michiko Morooka2, Martin Volwerk4, Giuseppe Arró5, Hadi Madanian6, Francesco Callifano7, Luis Preisser4, Diana Rojas Castillo8, and Cyril Simon-Wedlund4
Tomas Karlsson et al.
  • 1KTH Royal Institute of Technology, Electrical Engineering, Space and Plasma Physics, Stockholm, Sweden (tomask@kth.se)
  • 2Swedish Institute of Space Physics, Uppsala, Sweden
  • 3Laboratoire de Physique des Plasmas (LPP), CNRS-Observatoire de Paris-Sorbonne Université-Université Paris Saclay-Ecole polytechnique-Institut Polytechnique de Paris, Palaiseau, France
  • 4Austrian Academy of Sciences, Space Research Institute, Graz, Austria
  • 5Los Alamos National Laboratory, USA
  • 6Laboratory for Atmospheric and Space Physics, University of Colorado, CO, Boulder, USA
  • 7Dipartimento di Fisica "E. Fermi", Università di Pisa, Pisa, Italy
  • 8Universidad Nacional Autonoma de Mexico, Instituto de Geofisica, Ciencias Espaciales, Mexico City, Mexico

Solar wind magnetic holes are small-scale, isolated decreases of the magnetic field strength. They are commonly divided into two types, linear and rotational magnetic holes, based on the rotation of the magnetic field vector from one side of the hole to the other. We present Solar Orbiter, Parker Solar Probem and MESSENGER measurements of magnetic holes from the inner heliosphere (~0.1-1.0 AU) and Cassini measurements from the outer heliosphere (~9 ̶ 10 AU). We compare properties such as rate of occurrence, and distributions of scale size, depth, and amount of magnetic field rotation, and discuss the findings in terms of local generation of magnetic holes, versus transport of magnetic holes generated in the inner heliosphere. We also discuss the relative importance of magnetic holes in interacting with the magnetospheres of planets in the inner and outer heliosphere.

How to cite: Karlsson, T., Trollvik, H., Dimmock, A., Hadid, L., Morooka, M., Volwerk, M., Arró, G., Madanian, H., Callifano, F., Preisser, L., Rojas Castillo, D., and Simon-Wedlund, C.: Solar wind magnetic holes in the inner and outer heliosphere, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-3154, https://doi.org/10.5194/egusphere-egu24-3154, 2024.