Global destabilization due to localized reconnection: A mechanism for coronal mass ejections
© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2001
Received: 19 June 2000
Accepted: 20 February 2001
Published: 26 June 2014
Solar CMEs are large scale eruptive phenomena, while flux emergence is a local event on the Sun. Our numerical simulations show that two categories of reconnection-favored emerging flux can trigger the destabilization and the ejection of the filament (i.e., CME): within the filament channel or on the outer edge of the channel, which confirms recent important observations by Feynman and Martin (1995). In particular for the latter category, numerical results show that there is a critical amount for the emerging flux, below which the flux rope eruption cannot be triggered. Our numerical model, for the first time, provides a physical explanation for the observed correlation between CMEs and the reconnection-favored emerging flux.