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“This discovery will start new scientific research among astronomers,” says Alice Pasetto, a radio astronomer at the National Autonomous University of Mexico in Mexico City.
The MeerKAT radio data show that the ORC’s large outer circle could be more than 300,000 parsecs across — ten times the diameter of the Milky Way — with a series of smaller rings inside. Researchers have proposed several theories to explain the origin of ORCs. These include that the objects are created by a shock wave from the centre of a galaxy, similar to what happens when two supermassive black holes merge. Another theory is that ORCs are shells caused by starbursts in the centre of a galaxy.
France Dernières Nouvelles, France Actualités
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