For a star that undergoes core-collapse, which remnant object forms if the resulting core mass is between approximately $1.4 M_ ext{sun}$ and $3 M_ ext{sun}$?
Answer
A neutron star
If the collapsed core mass falls between the Chandrasekhar limit (electron degeneracy limit) and the Tolman-Oppenheimer-Volkoff limit (the neutron degeneracy limit, roughly $3 M_ ext{sun}$), the object stabilizes as a neutron star.
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