Thursday, October 22, 2015

What is a white dwarf, and why it destroys the planet? – Arguments and Facts

 
 
White Dwarf Photo: Shutterstock.com

The British scientists from the Harvard-Smithsonian Center for Astrophysics in Cambridge discovered destroy the planet “Death Star.” It is called WD 1145 + 017 and is located in the constellation Virgo white dwarf. Currently, the scientists found the object “eats” * exoplanet, whose size is comparable to Ceres **.

«Nothing like humanity has never seen before. We watch as the star destroys its own planetary system. Now we have an iron evidence that white dwarfs *** do periodically destroy the planet “- said astronomer Andrew Vanderburgh, who participated in the study” Death Star. ”

Is discovered “Death Star” to destroy the Earth?

No, the object WD 1145 + 017 threat to our planet is not.

And there are “the stars of death” that could destroy the Earth?

Yes, there is. Earth can destroy the sun. But before this star should go out and become a white dwarf. Even before the Sun begins to destroy the Earth, our planet’s life will be gone. Since the star will burn its entire surface. This can happen after a few million years.

Why are white dwarfs destroying the planet?

destruction of the planet is due to the fact that they fall under the strong gravitational influence of the white dwarf, causing them to break apart.

The fact that the stars as the extinction of the flow rate of hydrogen and gradually start to dump the outermost layer, forming a planetary nebula in the center of which there is only a bare nucleus – a very tight ball with a radius of just one hundredth of the the radius of the former stars, but with slightly less weight. Such a high density of matter in white dwarfs creates powerful gravity. Under the incredibly increased the power of attraction is the destruction of the planets that are close to the white dwarf.

* The exoplanet (from ancient Greek. Ἔξω, exō – is on the outside) – a planet that orbits a star, not is the sun. On October 20, 2015 was significantly confirmed the existence of exoplanets 1970 1250 planetary systems, of which 490 have more than one planet.

** Ceres – the closest to the Sun, the dwarf planet of the Solar System. It is the surface area of ​​849 631 sq km 2 (the area of ​​Russia, by comparison, is 125 407 sq km 17).

*** White dwarfs – a compact superdense objects, which are transformed after the extinction of the stars. Their mass is comparable to or greater than the mass of the Sun, but the radius is 100 times smaller. This type of star has a small luminosity and deprived of its own sources of fusion energy.

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