If a massive star's remaining core mass after collapse is greater than about $3 M_{ ext{Sun}}$, what compact object forms?

Answer

A black hole

Following a supernova, the remnant core will become a neutron star unless its mass is greater than approximately 3 solar masses, in which case it becomes a black hole.

If a massive star's remaining core mass after collapse is greater than about $3 M_{	ext{Sun}}$, what compact object forms?
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