What is the approximate mass range (in solar masses) for a remnant core that results in a neutron star?

Answer

Between about 1.4 and 3 solar masses

The specific mass of the collapsing core remnant determines the final object; a core mass generally between approximately 1.4 and 3 solar masses results in the formation of a neutron star.

What is the approximate mass range (in solar masses) for a remnant core that results in a neutron star?
evolutionastronomystarsupernovaremnant