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Merge of Two Black holes:
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| Credit: LIGO/VIRGO/NASA |
Researchers at LIGO - VIRGO detected merging of two black holes which was occurred in 7 billion years ago and the gravitational shockwave reaches the earth in May, 2019. The researchers says that one black hole with a mass 66 times that of our Sun, and the other with 85 solar masses. The two black holes came close together, rapidly spinning around one another several times per second before collision. Collison of these two black holes produced with a mass 142 times that of our Sun. The distance to the merger was calculated to be the equivalent of 150 billion trillion km. researchers said this merging black hole is an "intermediate mass black holes" which ranges from 100 - 1000 times the mass of our sun. This gravitational wave event was named GW190521. Now they confirmed the existence of intermediary mass black hole. The signal lasting just one-tenth of a second.The signal had a frequency of 60Hz.
What is a black hole?
Black Holes are the mysterious objects in the space. They form when a star dies, the gravitational pull is so strong that nothing, not even light, can't escape from black hole and we still trying to understand about black hole, many scientists estimate that there are as many as ten million to a billion such black holes in the Milky Way. HR6817 is the closest black hole to Earth locating in 1000 light years from the Earth. On 2019, researchers release the first ever image of black hole which prove the existence of black hole. There are four types of Black hole they are stellar, intermediate, supermassive, and miniature. And further they are divided into two types by their properties 1) Stationary 2) Rotating black hole. Every Black holes comes in these two groups.
If it said to be stationary black hole the edge of the black hole have only one event horizon and singularity at centre. If it said to be a rotating Black hole it have two event horizon and a regularity at centre. All these types are decided by 3 property mass, charge, angular momentum.
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