If the remnant core mass of a collapsed massive star exceeds the Tolman–Oppenheimer–Volkoff limit (above $2-3 M_{ ext{Sun}}$), what ultra-dense object remains?
Answer
A Black Hole
The collapsed core of a massive star becomes either a Neutron Star or, if its mass exceeds the estimated limit of $2-3$ solar masses for the remnant, a Black Hole.
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