Australian astronomers have presented evidence of the existence of “seeds” of supermassive black holes.
The authors explain that medium-mass black holes are an intermediate point in evolution between their low-mass and high-mass counterparts.
However, earlier scientists were not sure about the existence of this intermediate link, as the evidence was inconclusive.
In a new work, researchers from the University of Melbourne and Monash University announced that they have discovered a real “seed” of a supermassive black hole: it is about 55 thousand times the mass of the Sun. The effect of the distortion of light from an explosion that occurred in the early Universe helped to identify it.
Astronomers analyzed 3,000 GRBs recorded by the Compton orbiting observatory between 1991 and 2000. As it turned out, only one event from this entire set, the GRB 950830 flash in the constellation Crane at the end had a pronounced light “echo”.
According to the researchers, this discovery is critical to understanding how black holes form and grow.