Researchers at the Shanghai Astronomical Observatory have made a breakthrough in gravitational wave astronomy, finding the first clear evidence that a known black hole merger may have occurred under the influence of a third dense object – possibly a supermassive black hole.
By analyzing data from the 2019 gravitational wave event GW190814, the team identified a subtle "acceleration signature" in the signal, caused by the merged black holes orbiting around a third body. This effect, known as line-of-sight acceleration, alters the gravitational wave frequency via the Doppler effect.
This finding offers valuable clues to solving one of astrophysics' key mysteries – how black hole binaries form and evolve.
For more:
https://www.cgtn.com/video
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Video at Youtube: https://www.youtube.com/watch?v=fdMTgUdV-pY