For stars similar to or less massive than the Sun, what non-thermal mechanism halts core collapse after hydrogen fuel runs out?

Answer

Electron degeneracy pressure

When fusion stops and thermal pressure drops, collapse is halted in lower-mass remnants by degeneracy pressure rooted in quantum mechanics, specifically electron degeneracy pressure.

For stars similar to or less massive than the Sun, what non-thermal mechanism halts core collapse after hydrogen fuel runs out?

#Videos

Why Don't Main Sequence Stars Explode Or Collapse? - YouTube

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