black holes
Black holes are the evolutionary end to a massive star. Although it is hard to imagine , a black hole comes directly from a star. Stars come from dust and gas in the atmosphere , that heat up and start giving off radiation. These are known as protostars. A protostar will brighten and continually contract and rise in temperature. As the temperature increases the pressure increases which brings you to a point where the outward force balances the inward force of gravity. The dust soon vaporizes, and the gas turns opaque. Black holes are formed when a massive star or supernovae ends it's life. The process where the star evolves and then dies is called stellar evolution. At the end of a stars life it is involved in a supernovae explosion. This explosion burns away the elements in astar except for the iron core because as we know iron cannot burn. When the iron core reaches a certain mass, a sequence of events is triggered. Gravity over rules the pressure that had been stabilizing it, and the iron core collapses. The core goes from the size of about five thousand miles to the small size of about twelve miles in less than a second.. At this point the star has reached singularity. Singularity is when a star is compressed to a p
Since they emit no light no one has ever seen one, and in order to observe them you must look at gravitation of nearby matter. The amount of energy released during the collapse is equivalent to the amount of energy released by one hundred stars in their ten billion year lifetimes. The matter is squeezed until it occupies no space but is still technically there. When combined together these factors create black holes in our universe. White dwarfs and neutron stars cool off and slowly fade and become invisible. A typical black hole would have the mass of about10^31 kg, And there are others with about 10^ 37 kg. The Radius of the event horizon is called the Schwarzchild radius of the gravitational radius. No one knows what black holes really are, and they are rarely thought of ever exhisting. For a mass as small as humans, the gravitational radius would be smaller than the nucleus of an atom. There is no limit to the size of a black hole , any amount of mass if you compress it to a certain density can become a black hole. Since we cannot se a black hole we must find other ways of detecting them. Using these rays, we can detect where the starting place of the x rays are. To find the radius of the event horizon you use a specific formula. If the conditions were right the sun could be a possible candidate to become a black hole.
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Acceptance Essays
