Questions Concerning the Disconnection and Eruption of Filaments and CMEs What is the role of prominence disconnection in CMEs? What causes/prevents eruptions?

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Questions Concerning the Disconnection and Eruption of Filaments and CMEs What is the role of prominence disconnection in CMEs? What causes/prevents eruptions? What happens when a barb disconnects? Where do CMEs disconnect?

Chifor et al What is the role of prominence disconnection in CMEs? Can activity at filament footpoints be the cause of CMEs?

Footpoint Disconnection Nagashima et al 2007

What prevents eruption?

1997 February 23 Dere et al 1999 What is happening when only one footpoint apparently remains attached?

What Happens When a Footpoint Disconnects?

Would the disconnection event be affected by the magnetic structure of the barb? Kucera et al 1999 DeVore & Antiochos 2000

Where do CME disconnect?

Bidirectional Flows Larson et al 1997 Where and how do CMEs disconnect? Are prominence disconnections just small & localized?

Failed or at least postponed eruptions Gopalswamy et al 2004