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Circular-ribbon flares and the related activities
Zhang, Qingmin
Solar flares are an impulsive increase of emissions as a result of impetuous release of magnetic free energy. This paper will present the recent progress on circular-ribbon flares (CRFs) and their related activities, including coronal jets, filaments, coronal mass ejections (CMEs), radio bursts, coronal dimmings, and coronal loop oscillations. Owi…
Diagnostics of the solar coronal plasmas by magnetohydrodynamic waves: magnetohydrodynamic seismology
Nakariakov, Valery M.; Yuan, Ding; Kolotkov, Dmitrii Y. +3 more
Macroscopic wave and oscillatory phenomena ubiquitously detected in the plasma of the corona of the Sun are interpreted in terms of magnetohydrodynamic theory. Fast and slow magnetoacoustic waves are clearly distinguished in observations. Properties of coronal magnetohydrodynamic waves are determined by local parameters of the plasma, including th…
Recent advances in solar data-driven MHD simulations of the formation and evolution of CME flux ropes
Poedts, Stefaan; Schmieder, Brigitte; Guo, Jinhan
Filament eruptions and coronal mass ejections are physical phenomena related to magnetic flux ropes carrying electric current. A magnetic flux rope is a key structure for solar eruptions, and when it carries a southward magnetic field component when propagating to the Earth. It is the primary driver of strong geomagnetic storms. As a result, devel…
Regarding the relativistic electron dynamics in the outer radiation belt: a historical view
Stepanova, Marina; Pinto, Victor; Antonova, Elizaveta
The start of the space era marked the discovery of the Earth's radiation belts. Sixty-five years after that discovery, there are still many unknowns in its dynamics, but there is also a lot of understanding about many processes. This review summarizes a broad overview of a particular topic: the effect of geomagnetic storms on the radiation belts f…
Intermittent plasma turbulence in the Martian plasma environment
Fränz, Markus; Echer, Ezequiel; Franco, Adriane M. S. +1 more
Due to the absence of a global intrinsic magnetic field, Mars presents an induced magnetosphere, which is formed by the interaction between the solar wind and the conductive ionosphere of the planet. In that interaction, plasma boundaries and regions are created. Wave activity is present in the Mars plasma environment, and as consequence of non-li…