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Black Holes

26 Sep 2020, 16:00 UTC
Black Holes
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Black holes, the enigmatic cosmic objects, are actually not so rare in the universe. All it needs is a star with the mass of at least 10 times that of our sun. After its Hydrogen has run out and Hydrogen-fusion is no longer possible, things start to change. Without fusion, the equilibrium between gravity and fusion pressure ceases to exist. The result: a supernova explosion that sheds the outer layers of the star. With only gravitational forces left, remnant material collapses. If the remaining mass is about 1.5 to 2 times that of the sun, the force will push electrons into protons, which become neutrons, hence the name neutron star. If more mass remains, gravitational forces squeeze even neutrons into each other. This results is an area so massive and so dense that even light cannot escape its gravitational pull. The process is quite normal; black holes are simply evolutionary endpoints in the life of a large star.

Milky Way’s center has a much higher star density than the outer regions; subsequently it would also be populated with a greater number of black holes. As a matter of fact, so many black holes were concentrated in the center, that they ...

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