According to the calculations, the formation of a black hole can not be completed as intended before
American physicists Laura Mersini-Houghton and Harald Pfeiffer performed calculations, the results of which refutes most common hypothesis formation of black holes. The results of the study are available on the site Arxiv.org.
The Black Hole – a hypothetical region in space-time, characterized by gravity so strong that leave this area can not even particles moving at the speed of light. The existence of black holes formed the basis of numerous astrophysical theories and not questioned by most scholars, although it can be determined only by circumstantial evidence. There are two types of black holes: stellar-mass and supermassive. It is believed that black holes are formed in the first type of dying massive stars that collapse under the influence of its own gravity, and as a result become a superdense.
British physicist Stephen Hawking in 1974 put forward the theory that black holes emit radiation of particles carrying away their mass. Calculations Mersini-Houghton and Pfeiffer prove that the collapse of a massive star should arise Hawking radiation, causing the star should rapidly lose weight. Thus, the compression process is slowing down, stops, and then the reverse process, and the star explodes after rapid expansion, reaching a radius larger than the event horizon. “This study provides a more realistic model of the inverse effect of Hawking radiation on the collapsing star than previously thought” – the authors calculations.
Recently, NASA astronomers announced the discovery of a supermassive black hole in a dwarf galaxy at a distance of 50 million light years from the earth. According to the scientists, is the smallest of the detected galaxies today, where there is a black hole of this magnitude.
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