Density

By | August 10, 2015

The critical radius of a celestial body is determined from the balance of gravitational force, attracting celestial body to the particle and the centrifugal force acting on the particle, provided that its speed speed equals the speed of light. The density of the celestial body in these circumstances is critical. For example, for our Sun is the critical radius of 2.9 km. However, calculations show that our Sun will never be able to contract to such sizes. With further compression of the gravitational force continues to grow, and the centrifugal force reached its maximum, because the particle can not have a velocity greater than the speed of light. Gravitational forces become so powerful that no material particle can not break away from the surface of a celestial body. Such a star can only draw to itself all the surrounding bodies and particles ("devours matter"), but can not give into the surrounding space single particle, even a photon. Finally, the compression is so great that all the electrons are embedded in the nucleus, fuse with protons to form neutrons.

This is called a neutron star. Its density amounts to several billion tons per cubic centimeter. And the increasing density speeds up the process of compression. When the density reaches 150mlrd t/sm3, neutrons are converted into hyperons. Stop catastrophic contraction is not possible. This irreversible loss of stability of the space system (star or galaxy) due to excessive compressive forces over the forces of expanding called gravitational collapse. Star, contracting with great force, completely crushes itself its own weight, turning a few seconds to an ideal point from which, following the Russian astrophysicist NA Kozyrev, reaches a kind of "channel" or "tunnel" in another world.


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