3 Theoretical Models

 3.1 Basic principles
 3.2 Global picture
 3.3 Progenitor
 3.4 Triggering mechanisms
  3.4.1 Observational precursors
  (1) Helmet streamer swelling and/or slow rise of prominences
  (2) Reconnection-favored emerging flux
  (3) SXR brightenings
  (4) Radio noise storms
  (5) Type III radio burst group
  (6) Filament darkening and widening
  (7) Long-term filament/prominence oscillations
  (8) Outward-moving blobs near the edge of streamers
  3.4.2 Various triggering mechanisms
  (1) Tether-cutting or flux cancellation mechanism
  (2) Shearing motions
  (3) Magnetic breakout model
  (4) Emerging flux triggering mechanism
  (5) Flux injection triggering mechanism
  (6) Instability and catastrophe-related triggering mechanisms
  (7) Hybrid mechanisms
  (8) Other mechanisms
  3.4.3 Remarks for the progenitors
 3.5 Acceleration and propagation
  3.5.1 Bright core
  3.5.2 Cavity
  3.5.3 Frontal loop
  3.5.4 Lateral expansion
  3.5.5 CME-associated shocks

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