Petschek Rate:
MA = π/(8 ln Rm)
Inflow: vin = MA·vA
Outflow: vout = vA
X-point geometry:
B changes sign across current sheet; flux tubes break and reform
MA = π/(8 ln Rm)
Inflow: vin = MA·vA
Outflow: vout = vA
X-point geometry:
B changes sign across current sheet; flux tubes break and reform
Magnetic reconnection converts magnetic energy to kinetic and thermal energy at an X-point. Petschek's model predicts fast reconnection via slow-mode shocks radiating from the X-point.