OJ287 is a Lacertida, a powerful source of electromagnetic radiation located in the center of the same name
Such a conclusion astronomers have done because of the unusualbehavior of one of the black holes - from time to time it flared up sharply, and its brightness increased several times. It is assumed that once every 12 years two supermassive black holes approach each other.
With the help of Radioastron, which stopped work in January 2019, the researchers studied the central regions of OJ287 and obtained data on the interaction of black holes with the accretion disk.
On the one hand, one cannot say that twistedejections and a curved disk necessarily speak of the existence of a double black hole - they could arise in other ways. On the other hand, our observations are fully consistent with the predictions of the theory and they are most easily explained by the fact that there are two black holes in the center of the galaxy OJ287.
Yuri Kovalev, the mission of the Radioastron project
Earlier it was reported that Russian scientists plan to send the largest virtual radio telescope "Millimetron" for the lunar orbit in 2025.