Photospheric vortex flows as a cause for two-ribbon flares: A topological model

✍ Scribed by V. S. Gorbachev; B. V. Somov

• Book ID: 104642387
• Publisher: Springer
• Year: 1988
• Tongue: English
• Weight: 618 KB
• Volume: 117
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00148574

✦ Synopsis

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.