
Image of a white dwarf 1ES 1927+654 around the supermassive black hole
Aurore Simonnet/Sonoma State University
strange vibrations that arise from supermassive black hole they seem to be growing more frequently and can be triggered by a white dwarf orbiting dangerously close to it. event horizon
In 2018, a supermassive black hole called 1ES 1927+654 took astronomers by surprise, changing from a relatively inactive black hole to a very bright one. It was the first time a supermassive black hole had been seen to change in this way.