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What else can I help you with?
Is Pluto a white dwarf star?
No, Pluto is a dwarf planet in our solar system, not a white dwarf star. White dwarfs are remnants of low to medium mass stars that have exhausted their nuclear fuel and collapsed. Pluto is too small to undergo nuclear fusion and become a star.
Why doesn't nuclear fusion take place in a white dwarf?
Nuclear fusion doesn't take place in a white dwarf because the core temperature and pressure aren't high enough to initiate the fusion of heavier elements such as carbon and oxygen. White dwarfs have already exhausted their nuclear fuel and are essentially the leftover cores of stars that have gone through their fusion stages.
Is a white dwarf capable of fusing elements?
Not normally. A white dwarf is the remnant of a star in which fusion has stopped. If, however, a white dwarf has a close binary companion star it can accrete gas from that companion. If enough gas collects on the white dwarf it can ignite a complex reaction change between the hydrogen gas and the carbon, nitrogen, and oxygen of the surface. Unlike the steady fusion in a main sequence star, the fusion on a white dwarf is a runaway reaction that results in a massive explosion called a nova, which drives away the accreted gas and ends fusion. If the white dwarf is massive enough the accretion of gas can trigger carbon fusion inside the white dwarf, resulting in an even larger explosion called a type Ia supernova, which destroys the white dwarf.
What causes stars to change during the white and black dwarf phases?
A white dwarf no longer produces energy through fusion but remains hot from the residual heat of the star it once was. It will radiate that energy away and slowly cool as a result, eventually becoming a black dwarf.
Why are White Dwarf stars so dim?
White dwarf stars are dim because they are very small and have a low surface temperature, which reduces their overall luminosity compared to main-sequence stars like our Sun. They are essentially burnt-out remnants of stars, with no active nuclear fusion taking place in their cores to produce energy.
Is it necessary for a star to carry out fusion reaction?
Well, white dwarf, brown dwarf, and neutron stars don't; but they are "dead" stars.
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.
How are stars made with fusion reaction big bang giant nebula white dwarf and protostar?
white dwarf is an age that a star reaches but the big bang is an explosion of nuclear energy that makes a star
Is Pluto a white dwarf star?
No, Pluto is a dwarf planet in our solar system, not a white dwarf star. White dwarfs are remnants of low to medium mass stars that have exhausted their nuclear fuel and collapsed. Pluto is too small to undergo nuclear fusion and become a star.
Why doesn't nuclear fusion take place in a white dwarf?
Nuclear fusion doesn't take place in a white dwarf because the core temperature and pressure aren't high enough to initiate the fusion of heavier elements such as carbon and oxygen. White dwarfs have already exhausted their nuclear fuel and are essentially the leftover cores of stars that have gone through their fusion stages.
Which stars do not have nuclear fusion occurring in their core?
All stars "burn" by the process of nuclear fusion. When fusion has been completed, the star dies. That can occur in several different ways and the interested party could look into the topic of stellar evolution. Neutron stars, black holes and white dwarfs are examples of end stages of stellar evolution. Some stars never really reach the stage of fusion and such large objects are called brown dwarfs. If Jupiter were not a planet, it might be deemed a brown dwarf.
Is a white dwarf considered a main sequence star?
No, a white dwarf is not considered a main sequence star. A main sequence star is a star that is still fusing hydrogen in its core. A white dwarf is the remnant of a low to medium mass star in which fusion has stopped.
Are white dwarf stars young?
No. A white dwarf is a remnant of a dead star.
Are white dwarf stars always white?
No in the life cycle of a star, a white dwarf can cool and become a black dwarf
Is a white dwarf capable of fusing elements?
Not normally. A white dwarf is the remnant of a star in which fusion has stopped. If, however, a white dwarf has a close binary companion star it can accrete gas from that companion. If enough gas collects on the white dwarf it can ignite a complex reaction change between the hydrogen gas and the carbon, nitrogen, and oxygen of the surface. Unlike the steady fusion in a main sequence star, the fusion on a white dwarf is a runaway reaction that results in a massive explosion called a nova, which drives away the accreted gas and ends fusion. If the white dwarf is massive enough the accretion of gas can trigger carbon fusion inside the white dwarf, resulting in an even larger explosion called a type Ia supernova, which destroys the white dwarf.
What causes stars to change during the white and black dwarf phases?
A white dwarf no longer produces energy through fusion but remains hot from the residual heat of the star it once was. It will radiate that energy away and slowly cool as a result, eventually becoming a black dwarf.
Why are White Dwarf stars so dim?
White dwarf stars are dim because they are very small and have a low surface temperature, which reduces their overall luminosity compared to main-sequence stars like our Sun. They are essentially burnt-out remnants of stars, with no active nuclear fusion taking place in their cores to produce energy.
