A new study has revealed evidence of the presence of a large number of double supermassive black holes, which became the precursors of large-scale merger events. This confirms the modern understanding of cosmological evolution - galaxies and associated black holes merge with time, forming large structures.
The researchers studied the radio maps of powerful sources of jets and found signs hinting at the presence of closely rotating black holes. Before merging, black holes form a double system. Gravitational wave telescopes are capable of displaying a confluence of small black holes from 2015, measuring powerful bursts of gravitational waves. However, the current technology can be applied to supermassive double pairs of black holes.
Double black hole streams are constantly changing. The effect can be explained by this 5GHz radio card 3C 334 and many powerful radio sources in the sky. The jet is released from the galactic core, distant by 10 billion light years from the Milky Way. The picture covers 5 million light years in width. The characteristic structure of the jet means a periodic change in the direction of the precession. The diagram illustrates the physical processes in a pair of black holes. The direction of the jet is due to the rotation of the black hole. Supermassive black holes release powerful jets, and their orbit leads to a periodic change in the direction of the jet. Astronomers studied the motion of jets and deflections in directions: they compared the direction of jets with one of the radio waves to demonstrate the possibility of using the method to search for supermassive double pairs of black holes.
Surprisingly, a comparison of computer simulations and high-resolution radio cards showed the necessary signatures. The fact that the most powerful jets are associated with double black holes has important consequences for the birth of stars in galaxies. The stars form cold gas, the streams heat it up and suppress the creation of new stars. Directed in one direction jet heats only a certain amount of gas in the vicinity. But jets in double black holes are constantly changing, therefore they cover a larger gas volume with heating and effectively suppress the birth of stars.
