EGU22-6620, updated on 04 Mar 2024
https://doi.org/10.5194/egusphere-egu22-6620
EGU General Assembly 2022
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Directional Discontinuities in the Inner Heliosphere

Ákos Madár1,2, Geza Erdos1, Andrea Opitz1, Zoltan Nemeth1, Gabor Facsko1, Aniko Timar1, Nikolett Biro1,2, Gergely Koban1,2, and Zsuzsa Dalya1
Ákos Madár et al.
  • 1Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary (madar.akos@wigner.hu)
  • 2Doctoral School of Physics, Eötvös Lorand University, Budapest, Hungary

The Parker Solar Probe and Solar Orbiter spacecraft make whole new spatial and time scales available in the inner Heliosphere. With these new data, we study directional discontinuities that are common structures in the solar wind in this region. Their radial distribution can provide insight into the physical processes of this virtually collisionless plasma. Applying a method (Erdős & Balogh, 2008) based on minimum variance analysis to select directional discontinuities in magnetic field data, we determine their number as a function of distance from the Sun. How the directional discontinuity occurrence rate depends on the solar wind speed is also part of our analysis.

How to cite: Madár, Á., Erdos, G., Opitz, A., Nemeth, Z., Facsko, G., Timar, A., Biro, N., Koban, G., and Dalya, Z.: Directional Discontinuities in the Inner Heliosphere, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-6620, https://doi.org/10.5194/egusphere-egu22-6620, 2022.