What is white dwarf star ? . Information about white dwarf

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How white dwarfs born ?

When a star moves towards its death, then its mass depends on how its death will be.
For example, a star slightly smaller than the Sun turns into a white dwarf.

These white dwarf stars are much smaller in size than the Sun but have a much higher density.

How to find white dwarf stars ?


White dwarf stars can be found in many ways. First white dwarf discovered in constellation Mejor Mejor Opposition. telescope producer Avalan Clarke saw this object for the first time.
                                                            Because white dwarfs are very small, they are very difficult to detect.
That's why binary star systems are very helpful to find them.White dwarfs occur in more binary star systems where two white dwarfs are orbiting each other.Where they come close to each other slowly and because of this a lot of gravitational force is produced. And this force of gravity creates waves of energy.

What composition of white dwarf star ?

A white dwarf gets its sharp glow by emitting energy
Generally, white dwarf contains a large amount of carbon and oxygen.
It is very hot at the time of making a white dwarf. But over time they slowly cool down.When these stars become new, their color is high and bright.

And as these stars start to cool, the material inside it starts crystallizing.The process begins at the core of the star. And its ability to emit light slowly decreases.And in this way these stars will turn into a black dwarf.
But it takes about 14 billion years for a white dwarf to poach at this stage.

No evidence has been found of the existence of any black dwarf yet.
 
Metallic White Dwarf
 
About 25 to 30 percent of white Dwarf metal content is expected to be high.these white dwarfs can be found using high tech instruments from earth


White dwarf is considered to be the last evolutionary star with no energy and mass left to become a neutron star.

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