What is the Oppenheimer limit?

Answer 1

The Oppenheimer Limit is actually known as the Tolman-Oppenheimer-Volkoff Limit and is related to astrophysics. The limit is similar to the Chandrasekhar limit in the sense of limits. The Chandrasekhar is the accurate limit in which electron degeneracy can no longer resist gravity of massive stars of 1.44 stellar masses or more and force the electrons into the protons to become neutrons. The Oppenheimer Limit basically states within a certain mass(Currently unknown exactly!), the neutron will break down into quarks or other subatomic particles, or collapse into a black hole.

Answer 2

The Oppenheimer limit is the maximum mass at which a white dwarf can exist before collapsing into a neutron star due to electron degeneracy pressure being overwhelmed by gravity. It is approximately 1.4 times the mass of the Sun.