What extreme explosion results from the rebound shockwave after an iron core collapse?

Answer

A Type II Supernova explosion

When the iron core of a massive star collapses because fusion has ceased, the catastrophic implosion heats the core to billions of degrees, forcing protons and electrons to merge into neutrons. This collapse halts abruptly when the density reaches that of an atomic nucleus, causing the infalling material to rebound violently. This rebound generates an extremely powerful outward shockwave, resulting in a Type II Supernova explosion. This event is so luminous that it can temporarily outshine an entire galaxy. Furthermore, this immense energy release is the cosmic mechanism responsible for forging elements heavier than iron, such as gold and uranium, and scattering them throughout the cosmos.

What extreme explosion results from the rebound shockwave after an iron core collapse?

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