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Black Dwarf.

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White dwarf which has stopped radiating energy?

a black dwarf


Does fusion occur in white dwarf stars?

No. A white dwarf is the remnant of a star in which fusion as stopped.


Does a white dwarf star use hydrogen for energy?

No, white dwarf stars do not undergo nuclear fusion like main sequence stars, including our Sun. White dwarf stars are the remnants of low to medium mass stars, and they use stored thermal energy to shine and gradually cool over time.


Can a white dwarf that has no fuel make its own energy?

No. The energy of a white dwarf is simply residual heat.


What gas is being used as a fuel source for the white dwarf?

The gas being used as a fuel source for white dwarfs is primarily hydrogen. During nuclear fusion reactions in the core of a white dwarf, hydrogen atoms are fused together to form helium, releasing energy in the process.


What is formed as a white dwarf loses its energy and is smaller than a black dwarf?

As a white dwarf loses energy and cools down, it eventually transitions into a black dwarf. A black dwarf is a hypothetical stellar remnant that has cooled to the point where it no longer emits heat or light. It is smaller and denser than a white dwarf.


Why is the density of a red giant less than a white dwarf?

A red giant has been greatly inflated by the energy from nuclear fusion in a shell around the core. In a white dwarf fusion has stopped, the core has collapsed, and the low-density outer layers have been expelled into space.


The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light?

White dwarf stage. Note that not all stars reach this stage. Some stars experience runaway criticality and go supernova. Also, white dwarf stars in binary systems can still go nova if they are acquiring hydrogen from their partner.


What star is very hot but gives off little light?

Answer: A shooting star Answer: One with a small surface, such as a white dwarf or a neutron star. These are "dead stars", in the sense that energy production has stopped.


What kind of star forms when a white dwarf uses up all its energy?

A white dwarf is the remains of a dead star, not the birth of a new one.


Is a dwarf star one that has no fuel to make its own energy?

Yes, that is correct. A white dwarf has run out of fuel - it used it up.Yes, that is correct. A white dwarf has run out of fuel - it used it up.Yes, that is correct. A white dwarf has run out of fuel - it used it up.Yes, that is correct. A white dwarf has run out of fuel - it used it up.


Why is a star white?

stars are not always white there are many different types of star for example: Black Dwarf Red Giant White Dwarf Blue Giant Neutron they are all varying colors because of the configurations of gas and energy of particals. however 97% of our galaxy's stars are the fabled white dwarf these are white because they are expelling there entire energy at once, the white dwarf is the final stage of a stars life, aside from the purely theoretical black dwarf