BEIJING, April 1 (Xinhua) — 900 million years after the Big Bang, our universe has entered the earliest galactic era, when a black hole 1 billion times the mass of the sun has emerged. The black hole absorbs a large amount of ionizing gas, creating a “galactic engine” – known as blazar- – spewing a plume of ultra-high-temperature bright matter into space. On Earth today, we can still detect the light from that explosion more than 12 billion years ago.
Astronomers have previously found evidence that, in a slightly younger “radio-loud active galactic nuclei” (RL AGNs), there are primitive supermassive black holes that constantly devour surrounding gases and stars. These galactic nuclei appear particularly bright on radio telescopes, which is thought to be evidence that they contain supermassive black holes. The Yao variant is a special type of radionoise active galactic nucleus that emits two opposite-directional “relativistic” (i.e., close to the speed of light) of matter. These jets emit many narrow beams of light at different wavelengths, and their direction is only possible to detect them at such a distance when they are aimed at the Earth. In a new study, astronomers have observed the most distant variant of Yao, nearly 13 billion light-years away. The discovery advances the date of the date of the oldest supermassive black hole to the first 1 billion years of cosmic history and suggests that there were many similar black holes that we have not yet discovered during that period.
“As a result of this discovery, we can say that in the first billion years of life in the universe, there were many very large black holes that continued to emit intense orthological jets,” Silvia Belladita, a doctoral student at Italy’s National Institute of Astrophysics and one of the new study’s authors, said in a statement. “
The findings by Sylvia and others confirm the existence of Yao variants during a period in the history of the universe known as “reionization”. Reionization occurred after the long dark ages after the Big Bang, when the first stars and galaxies began to form.
The findings of the Yao variant strongly suggest that there may be many other Yao variants, the study authors wrote. If there is only one yao variant in the early stages of the universe, it will need to be coincidental enough to shoot the narrow visible beam of light into Earth and detect it for us. More likely, there were a large number of similar flare variants, and the beam was pointing in all directions, just as we found.
The researchers say these yaovariants are the seeds of supermassive black holes that dominate the core of many large galaxies in today’s universe — including the relatively quiet supermassive black hole at the center of the Milky Way. “It’s important to observe the Yao variant. With each discovery of a beam source of this type, we know there must be 100 similar beams, but most of the beams have different directions and are therefore too weak to be seen directly,” Sylvia said.
The results of the study were published in the recent study of Astronomy and Astrophysics. All this information helps astrophysicists reconstruct the story of how and when supermassive black holes formed. (Any day)