Interplanetary shocks and particle energisation in the inner heliosphere
- 1Imperial College London, Physics, London, United Kingdom of Great Britain – England, Scotland, Wales (d.trotta@imperial.ac.uk)
- 2Department of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, UK
- 3Department of Physics and Astronomy, University of Turku, Turku, Finland
- 4Swedish Institute of Space Physics, Uppsala, Sweden
- 5Departamento de Ciencias Espaciales, Instituto de Geofısica, Universidad Nacional Autonoma de Mexico, 7 Ciudad Universitaria, Ciudad de Mexico, Mexico
- 6Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany
- 7Department of Physics, University of Helsinki, Helsinki, Finland
- 8Universidad de Alcalá, Space Research Group (SRG-UAH), Plaza de San Diego s/n, 28801 Alcalá de Henares, Madrid, Spain
Interplanetary (IP) shocks are important sites of particle acceleration in the Heliosphere and can be observed in-situ utilizing spacecraft measurements. Such observations, crucial to address important aspects of energy conversion for a variety of astrophysical systems.
From this point of view, Solar Orbiter provides observations of interplanetary shocks at different locations in the inner heliosphere with unprecedented time and energy resolution in the suprathermal (usually above 50 keV) energy range. The general trends observed by Solar Orbiter and other spacecraft in the near-Earth environment for such shocks, highlighting their typical parameters, will be presented first. Then, the presence shock-induced wave activity in association with such shocks and their association with the presence of energetic particles will be discussed, summarizing some of the work performed in the framework of the the Solar EneRgetic ParticlE aNalysis plaTform for the INner hEliosphere (SERPENTINE) Project funded by EU H2020. Finally, particular emphasis will be devoted on the role of space/time irregularities at IP shocks and their effect on suprathermal particle production, focusing on some of the most interesting shocks observed by Solar Orbiter.
How to cite: Trotta, D., Hietala, H., Horbury, T. S., Vainio, R., Dresing, N., Dimmock, A., Blanco-Cano, X., Kartavykh, Y., Wimmer-Schweingruber, R., Kilpua, E., Jebaraj, I., Gieseler, J., Espinosa Lara, F., and Gomez Herrero, R.: Interplanetary shocks and particle energisation in the inner heliosphere, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-15030, https://doi.org/10.5194/egusphere-egu24-15030, 2024.
