Data-driven simulation of the coronal mass ejection of October 28 2021
- 1KU Leuven, Mathematics, Leuven, Belgium
- 2Observatoire de Paris, LESIA, France
- 3School of Astronomy and Space Science, Nanjing University ,China
- 4University of Nanintal, India
- 5University of Lublin, Poland
The event of October 28 2021 was very geoeffective with particles accelerated to high energies resulting in ground level enhancements (GLEs). It is important to understand the scenario leading to such energetic particle acceleration which can be done by studying the origin of this event from the Sun to the Earth through the heliosphere. The acceleration of particles was justified by two acceleration processes, one due to the flare during the impulsive phase, and the second by the coronal mass ejection (CME), which prolonged the low level proton emission (Zhang, Gan et al 2022, Klein et al 2022).
The first step of our study was to understand the relationship between the flare, the EUV wave and the CME using the SDO, STEREO- A/COR1 and SOHO/LASCO observations (Devi et al 2022). The second step was to model the CME (Guo et al 2023).
We found that a fast-mode EUV wave front propagates ahead the CME front. The eruption was modeled by a flux rope using the Regularized Biot-Savart Laws in a data-driven background obtained with HMI magnetograms. The CME was well recovered with its three components and the shock fitted with the observations. We plan to study the evolution of this flux rope in the solar wind by using EUHFORIA.
How to cite: Schmieder, B., Guo, J. H., Devi, P., Chandra, R., Guo, Y., Chen, P. F., and Poedts, S.: Data-driven simulation of the coronal mass ejection of October 28 2021, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-2002, https://doi.org/10.5194/egusphere-egu23-2002, 2023.
