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Supermassives black hole hurls star at Milky Way



Five million years ago, when mankind's ancestors were just learning to walk upright, a star from Sagittarius A * was ejected from the supermassive black hole in the center of the galaxy galaxy, at an astounding speed of 3.7 This month, a group of researchers discovered the super-fast star moving relatively close to the earth. ” src=”http://www.msn.com/{“default”:{“load”:”default”,”w”:”80″,”h”:”80″,”src”:”//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBWMlYC.img?h=799&w=799&m=6&q=60&o=f&l=f”

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Researchers, led by Sergey Koposov of the McWilliams Center for Cosmology at Carnegie Mellon University as part of the Southern Stellar Stream Spectroscopic Survey (S5), discovered the star – known as S5-HVS1 – in the constellation Grus. According to a news release from Tuesday, the star moved only 29,000 light-years from Earth or "virtually astronomically" next door.

The researchers said the "out of control" star was moving at a speed about ten times faster than most stars in the galaxy. "The speed of the discovered star is so high that it inevitably leaves [Milky Way] and never returns," said co-author Douglas Boubert of the University of Oxford.

"That's really exciting, as we've long suspected black holes can eject stars at very high speeds," Koposov said. "However, we never had a clear association of such a fast star with the Galactic Center."

The astronomer Jack Hills first suggested that Black Holes can launch super fast stars at high speed. But S5-HVS1 is the first time that scientists experience the Hills mechanism in action.

The discovery was made using the Anglo-Australian 12.8-foot telescope and observations from the Gaia satellite of the European Space Agency. The relative proximity of the star provided an "unprecedented" opportunity to learn about the phenomena.

  Starry Sky: Introducing Black Holes © Provided by CBS Interactive Inc.
Presentation of black holes

"It's really amazing to see this star," said Carnegie's Ting Li. "As we know, it must have formed in the Galactic Center, a place that is very different from our local area from a foreign country. "

Koposov and his team can now trace the Star's journey back to the city Center of the Galaxy . They assume that S5-HVS1 used to live with a companion star, but when the two drift too close to Sagittarius A * his companion was captured while being thrown back.

"My favorite part of this discovery is to think about where that star is coming from and where it's going," said Alex Ji of Carnegie. "It was born in one of the craziest places in the universe, near a super-massive black hole with many other star friends nearby, but it will leave our galaxy and die alone in the middle of nowhere. Grace. "


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