Distinguishing Eruptive from Non-Eruptive Solar Active Regions

1
Distinguishing Eruptive from
Non-Eruptive Solar Active Regions

• Manolis K. Georgoulis
• JHU/APL
• 11100 Johns Hopkins Rd., Laurel, MD 20723

Partially supported by LWS TRT
Durham, NH, 06/27/06
2
Sufficient statistics needed
Large helicity little free energy

• ?

Large free energy little helicity (suggested by
models)
3
Force-free model of energy/helicity budget
calculation

• A surface-integral representation of all energy
  helicity terms in the FF approximation
  (Georgoulis LaBonte 2006, ApJ, submitted)