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SIMULATION OF INTERMITTENT ELECTROMAGNETIC TURBULENCE IN COSMIC PLASMAтезисы доклада
- Авторы: Levashov Nikolay, Malova Helmi, Popov Victor, Tsareva Olga, Zelenyi Lev
- Сборник: 44th COSPAR Scientific Assembly - COSPAR 2022, Athens, Greece, 16 - 24 July 2022, Book of abstracts
- Серия: COSPAR-2022
- Тезисы
- Год издания: 2022
- Место издания: COSPAR COSPAR Scientific Assembly Афины Греция
- Первая страница: D1.2-0000-22
- Последняя страница: D1.2-0000-22
- Номер статьи: 32059
- Аннотация: One of the main processes in space plasma is the interaction of charged particles with a turbulentelectromagnetic field. This process is responsible for the acceleration of charged particlesand the heating of plasma in planetary magnetospheres, the solar corona, and other astrophysicalplasma systems. At the same time, according to numerous studies of electromagneticturbulence in the Earth’s magnetotail, electromagnetic turbulence is non-Gaussian in nature:there are wider “tails” in the distribution of the electromagnetic field compared to the Gaussiandistribution. This is due to the presence of rare but strong bursts in the behavior of the electromagnetic field. Such bursts are usually associated with localized structures such as magnetic clouds or plasmoids and can significantly affect the acceleration of particles in the solar wind. To describe the processes of acceleration and transport of charged particles in turbulent magnetospheric and solar plasmas, a model of a turbulent electromagnetic field with a controlledintermittency level is proposed. It is shown that the larger the parameter characterizing thelevel of intermittency, the higher the energy values charged particles can achieve. This work is supported by the grant MK-5053.2022.6 of the Ministry of Science and Higher Education of the Russian Federation.
- Добавил в систему: Малова Хельми Витальевна