What mechanism provides the outward push that prevents a neutron star from collapsing into a black hole?

Answer

Neutron degeneracy pressure

Neutron degeneracy pressure is the quantum mechanical resistance exerted by the neutrons that counteracts gravity, maintaining the stability of the neutron star structure, provided the mass remains below the upper limit.

What mechanism provides the outward push that prevents a neutron star from collapsing into a black hole?
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