What is the critical function of heavier elements, referred to as 'metals,' in the process of stellar core collapse?

Answer

They are highly effective at radiating heat away from the collapsing core via electromagnetic processes.

Trace heavier elements are crucial because they rapidly cool the contracting gas by radiating away heat. This rapid cooling prevents internal pressure from rising too fast and halting the gravitational collapse before fusion conditions are met.

What is the critical function of heavier elements, referred to as 'metals,' in the process of stellar core collapse?
starscosmologynebulastar formationastrophysics