Astronomers at the Swinburne University of Technology have played an important role in the discovery of a rare luminous jet of matter traveling close to the speed of light, created by a supermassive black hole violently tearing apart a star. Published in the journal Nature, the research brings astro
the research brings astronomers one step closer to understanding the physics of supermassive black holes, which sit at the center of galaxies billions of light years away.ARC Centre of Excellence for Gravitational Wave Discovery“Stars that are literally torn apart by the gravitational tidal forces of black holes help us better understand what exists in the Universe,” says Professor Cooke. “These observations help us explore extreme physics and energies that cannot be created on Earth.
The co-lead authors of the work, Dr. Igor Andreoni from the University of Maryland and Assistant Professor Michael Coughlin from the University of Minnesota, along with an international team, observed one of the brightest ever TDEs. They measured it to be more than 8.5 billion light years away, or more than halfway across the observable Universe.
It is still a mystery why some TDEs launch jets while others do not appear to. From their observations, the researchers concluded that the black holes associated with AT2022cmc and other similarly jetted TDEs are likely spinning rapidly. This suggests that a rapid black hole spin may be one necessary ingredient for jet launching—an idea that brings researchers closer to understanding these mysterious objects at the outer reaches of the universe.
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Hungry black hole is transforming star into a stellar taffy and a cosmic donutRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter sciencef1rst.
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