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TheLorax66 t1_iubuk09 wrote

They're represented as a singularity, and for all all intents and purposes it's a good approximation because the event horizon is always larger than the radius, but they do have a diameter. They form when the opposing forces between adjacent electrons and protons is overcome by the gravitational force, but the subatomic particles didn't go anywhere, they're just stacked on top of each other rreeeaaallll tight


carbonqubit t1_iucnpp3 wrote

This is the basis for electron degeneracy in neutron stars due to the Paul exclusion principle. Black holes on the other hand aren't composed of fermions, as the singularity is more like knotted space or a closed timelike curve. They can be defined as having three foundational characteristics: charge, spin, and mass.


TheLorax66 t1_iud9vd2 wrote

You know, you're right, I do remember that being about stars now. Thanks for the little lesson, my astrophysics course never got quite that deep :)