What process is responsible for synthesizing elements heavier than iron, such as gold and platinum, via slow neutron capture over thousands of years?

Answer

The s-process (Slow Neutron Capture)

The s-process, or Slow Neutron Capture, occurs over long timescales, often in evolved stars on the asymptotic giant branch, where nuclei slowly capture neutrons to build heavier elements.

What process is responsible for synthesizing elements heavier than iron, such as gold and platinum, via slow neutron capture over thousands of years?
Elementastronomycompositionstargiant