✦ LIBER ✦
The stability of line tied force-free cylindrical arcades: Is an active region filament a requirement for a two-ribbon flare?
✍ Scribed by A. Hood; U. Anzer
- Book ID
- 104642356
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 545 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
✦ Synopsis
The MHD stability of force-free, cylindrical arcades is investigated, including the stabilising effect of photospheric line tying. It is found that a wide variety of fields are stable. This suggests that either a departure from a force free equilibrium or suppression of line tying is necessary if a two-ribbon flare is to be triggered. It is postulated that in both circumstances, the existence of an active region filament is an essential preflare requirement for a two-ribbon flare.