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An extreme 2006 December 13 event marked the onset of the Hinode era beingthe last major flare in the solar cycle 23 observed with NoRH and NoRP. Theevent produced a fast CME, strong shock, and big particle event responsible forGLE70. We endeavor to clarify relations between eruptions, shock wave, and theflare, and to shed light on a debate over the origin of energetic protons. Oneconcept relates it with flare processes. Another one associates acceleration ofions with a bow shock driven by a CME at (2-4)R_sun. The latter scenario isfavored by a delayed particle release time after the flare. However, ourprevious studies have established that a shock wave is typically excited by animpulsively erupting magnetic rope (future CME core) during the flare rise,while the outer CME surface evolves from an arcade whose expansion is drivenfrom inside. Observations of the 2006 December 13 event reveal two shocksfollowing each other, whose excitation scenario contradicts the delayedCME-driven bow-shock hypothesis. Actually, the shocks developed much earlier,and could accelerate protons still before the flare peak. Then, the two shocksmerged into a single stronger one and only decelerated and dampened longafterwards.

An Updated View of Solar Eruptive Flares and Development of Shocks and CMEs: History of the 2006 December 13 GLE-Productive Extreme Event