- PII
- 10.31857/S0016794025040018-1
- DOI
- 10.31857/S0016794025040018
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 65 / Issue number 4
- Pages
- 421-429
- Abstract
- A new physical mechanism of flare energy release in force-free magnetic flux ropes is described: as the top of the magnetic rope-loop enters the corona, the external pressure G, which keeps it from expanding, steadily decreases. At its critically low value, the longitudinal field tends to zero on the magnetic surface where the currents change sign, and the force-free parameter and azimuthal current near this surface grow without limit, approaching the rupture. This excites plasma turbulence in the rope and serves as a flare trigger. Rapid dissipation of the field and currents on the anomalous plasma resistance induces an electric field much higher than the Dreiser field. The forces acting on the flare filament in the corona are described, and the conditions for its transition to the dynamic CME regime are discussed.
- Keywords
- солнечные вспышки магнитное поле бессиловой магнитный жгут плазменная неустойчивость равновесие магнитных жгутов корональные выбросы масс
- Date of publication
- 01.04.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 9
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