Photospheric vortex flows as a cause for two-ribbon flares: A topological model |
| |
Authors: | V S Gorbachev B V Somov |
| |
Institution: | (1) Lebedev Physical Institute of the Academy of Sciences, Leninsky prospect 53, 117924 Moscow, U.S.S.R. |
| |
Abstract: | By using a topological model for the potential magnetic field above the photosphere, the appearance and development of the separator as a result of vortex plasma flows in the locality of the photospheric neutral line is considered. The possible relation of such vortex flows with a flare activity is revealed. The arrangement and shape of the flare ribbons in the chromosphere, the formation of X-ray intersecting loops, the early appearance of bright knots on flare ribbon edges are naturally explained by the model provided a reconnecting current sheet arises along the separator in the coronal magnetic field of active regions as a result of the evolution of the magnetic field sources in the photosphere. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|