Sergey Tsigankov

This finding confirms the hypothesis that the supermassive black hole in the center of our Galaxy once had been much more active that it is now. The results are published in the Nature journal.

A black hole in the X-ray binary MAXI J1820+070 turned out to be strongly tilted with respect to the orbit of the binary. This discovery may have seroius implications for the measurements of black hole masses and spins from X-Ray observations. The results are published in Science on February 25, 2022.