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How does a white dwarf star generate energy?

Answer 1

Fermions collide with the surface they loose heat into Space and become weaker.

Degeneracy pressure is the force exerted by the extremely tightly bound fermions on the surface of a white dwarf, which is what prevents the star from collapsing into nothing and balances the inward acting gravity. A white dwarf is defined as a dead, extremely massive star that is roughly the size of the Earth but has the mass of the Sun.

The fermions weaken and release heat into space as they collide with the surface.

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Answer 2

Hailey Alvarez

When a white dwarf cools down, it releases thermal energy into space, eventually turning into a cold, inert object known as a black dwarf. The white dwarf produces energy through residual heat left over from its previous life cycle as a main sequence star. This heat comes from nuclear fusion reactions that occurred in its core when it was still a star.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.