Low to medium mass Stars will become white dwarfs, where the mass is up to 8 solar masses (8 times the mass of our sun).
There are two types of white dwarf stars;
- low mass stars with a solar mass less than 0.5 will become helium white dwarfs. The temperature of these will not be high enough to fuse helium into carbon.
- low to medium stars with a solar mass between 0.5 and 8 will become Carbon-Oxygen white dwarfs.
Any star larger than 8 solar masses cannot become a white 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.
When a white dwarf star no longer emits energy, it becomes a black dwarf. Black dwarfs are theoretical end points of stellar evolution where all nuclear reactions have ceased, and the star has cooled down to the background temperature of the universe.
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.
No, Pluto is not a star. Pluto is a dwarf planet located in our solar system, specifically in the Kuiper Belt. Stars are massive celestial bodies that generate light and heat through nuclear reactions in their cores.
The core temperature of a cool red dwarf star is around 3 million degrees Celsius. This is hot enough to sustain nuclear fusion reactions in the star's core, which is necessary to generate its energy output.
It depends on what you consider to be a lot of energy. A red dwarf generates far less energy than other classes of star, but still far more than anything on Earth.
The fate of an isolated brown dwarf depends on its mass. If the brown dwarf is below a certain threshold (about 13 times the mass of Jupiter), it will cool and fade over time, eventually becoming a cold, dark object called a "rogue planet." If the brown dwarf is more massive, it may undergo fusion reactions and become a star, though this is rare for isolated brown dwarfs.
a black dwarf
No. The energy of a white dwarf is simply residual heat.
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.
after the star implodes an explodes it becomes a white dwarf or a black hole Because it has used up all of it's fuel and has nothing left to convert into energy (unless it can accrete additional fuel from a companion star).
A white dwarf that has stopped radiating energy would essentially cool down and fade away into a black dwarf. This cooling process can take billions of years, during which the white dwarf becomes invisible to telescopes that detect radiation and can only be inferred by its gravitational influence.
A black dwarf [See related question]
When a white dwarf star no longer emits energy, it becomes a black dwarf. Black dwarfs are theoretical end points of stellar evolution where all nuclear reactions have ceased, and the star has cooled down to the background temperature of the universe.
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.
At that stage, it will no longer produce energy. All the energy it radiates out is its residual heat, and it will gradually get colder and colder. Due to its small size and high density, however, it will take trillions of years for the white dwarf to become a black dwarf.
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.