What is the ultimate fate of a Sun-sized star because its residual core mass falls below the Chandrasekhar limit?
Answer
Electron degeneracy pressure supports the core, leading to the ejection of outer layers as a planetary nebula and leaving a white dwarf
When a star's residual core mass after helium burning is below approximately $1.4 M_\odot$, electron degeneracy pressure prevents further gravitational collapse, precluding a supernova explosion.
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