Researchers in China found a star 15,000 light years away orbiting a 'dark companion' that defies theories of stellar evolution.
However, using China's Large Sky Area Multi-Object Fiber Spectroscopic Telescope , researchers have now been able to look for black holes by searching for stars that are orbiting invisible objects—black holes. With LAMOST, the team noticed a star 15,000 light years from Earth that appeared to be orbiting a black hole, but after examining their data, something did not add up.
At 70 solar masses, LB-1 is almost triple what models predict is possible."Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution," Liu said in a statement. LB-1 is twice as massive as what we thought possible. Now theorists will have to take up the challenge of explaining its formation.
David Reitze, the director of the gravitational wave detector LIGO, who was not involved in the study, commented on the findings."This discovery forces us to re-examine our models of how stellar-mass black holes form," he said in a statement."This remarkable result, along with the LIGO-Virgo detections of binary black hole collisions during the past four years, really points towards a renaissance in our understanding of black hole astrophysics.
Artist impression of a black hole. Scientists have discovered a black hole in the Milky Way that should not exist.
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