What specific process is responsible for synthesizing elements significantly heavier than iron, such as gold and uranium, during a supernova explosion?

Answer

The r-process (rapid neutron capture).

The extreme, short-lived environment created by the core collapse and rebound generates an intense flood of neutrons, enabling the rapid neutron capture process (r-process). This allows nuclei to capture neutrons faster than they can decay, building up the heaviest elements.

What specific process is responsible for synthesizing elements significantly heavier than iron, such as gold and uranium, during a supernova explosion?
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