Find the black hole closest to the earth: only 1,000 light years away!

 According to foreign media reports, the newly discovered black hole may be the black hole that has been observed so far from the earth, and people can observe the "cosmic home" where the black hole is located without a telescope.


　　 This mysterious black hole is located in the southern part of the Taurus constellation 1000 light-years away from the earth. The black hole cannot be observed. It has such a strong gravitational attraction that no object, even light, can escape the gravitational restraint of the black hole.


It is reported that astronomers initially thought it was a binary star system or two stars orbiting a center of mass celestial body. When they used MPG/ESO2.2 diameter land-based telescopes for in-depth observations, they named the binary star system HR 6819, which surprised them at the same time. Yes, they also observed a third celestial body-a black hole.


　　Although astronomers cannot directly observe the black hole, they can infer its existence based on the gravitational interaction between the black hole and the two companion stars. Through months of observation, they were able to map the orbit of the star and infer that another huge, invisible celestial body played an important role in the binary star system(https://www.handbags2021.com).


　　 observation results also show that one of the two stars in the binary star system circles the invisible celestial body every 40 days, while the other one exists independently in an area further away from the invisible celestial body.


　　 They calculated that the invisible object is a black hole of stellar mass. The black hole formed by the collapse of a dying star is about 4 times the mass of the sun.


Thomas Rivinius, a scientist at the European Southern Observatory, said: "This is an invisible object with a mass at least four times that of the sun. It can only be a black hole. This system contains the black hole we know so far that is the closest to the earth. "


　　 In addition to the HR 6819 black hole, the nearest black hole to the Earth is located in the constellation of Unicorn 3000 light-years away. However, scientists have analyzed that there may still be potential black holes that are closer, and there may only be millions of black holes in the Milky Way.


　　 The black hole is the first stellar mass black hole that does not emit bright X-rays and has a violent gravitational interaction with its companion star. This discovery can help researchers find other similar "quiet black holes" in the Milky Way.


　　 Livanius said: "There are hundreds of millions of black holes in the Milky Way, but we only know very few. Knowing what to look for will make us better find them."

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