Reconnection & Flares Part II movie courtesy of G. Stenborg.

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Presentation transcript:

Reconnection & Flares Part II movie courtesy of G. Stenborg

Chromospheric Evaporation

Evaporation Doppler Shift Puzzle blue wing

I  1/[R ln(R/r 0 )]

3D Loss-of-Equilibrium Model 3. line-current 1. flux rope 2. magnetic charges Titov & Démoulin (1999) 3 field sources

Line-Tied Evolution erupted configuration initial configuration vertical field at surface potential field

Transient Coronal Holes as Seen by EIT

Transient Coronal Holes as Seen by TRACE

Forces Acting on Flux Rope force vectors out of plane twisting restoring forces near feet

Kliem & Török (2004) current density

Simulation of Kliem & Török 1. line current replaced by quadrupole 2. subcritical twist for helical kink 3. torus center near surface

Role of Reconnection in the Breakout Model

What is the Trigger Mechanism in the Breakout Model? initial state (j = 0) energy build-up post eruption magnetic energy lower x-line appears