Assertion: star's core | /r/CapableOf | become degenerate
Facets:
Source sentences:
text: For more massive stars, helium core fusion starts before the core becomes degenerate, and the star spends some time in the red clump, slowly burning helium, before the outer convective envelope collapses and the star then moves to the horizontal branch.
text: The more massive AGB stars may undergo a brief period of carbon fusion before the core becomes degenerate.