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Runaway star – out of the galactic heart of darkness like a bat out of hell

 
Anonymous Coward
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11/13/2019 01:03 AM
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Runaway star – out of the galactic heart of darkness like a bat out of hell
[link to phys.org (secure)]

The discovery of the star, known as S5-HVS1, was made by Sergey Koposov from Carnegie Mellon University as part of the Southern Stellar Stream Spectroscopic Survey (S5). Located in the constellation of Grus—the Crane—S5-HVS1 was found to be moving ten times faster than most stars in the Milky Way.

Astronomers have wondered about high velocity stars since their discovery only two decades ago. S5-HVS1 is unprecedented due to its high speed and close passage to the Earth, "only" 29 thousand light years away. With this information, astronomers could track its journey back right into the centre of the Milky Way, where a 4-million-solar-mass black hole known as Sagittarius A* lurks.





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