The problem of the birthright of stars and black holes is a kind of chicken and egg problem. What came first? We see massive stars turning into black holes – this is a proven fact. At the same time, we notice the presence of supermassive black holes in the early Universe, which simply would not have had time to grow to detectable masses. “James Webb” it seems ready to answer this riddle.
The other day in a magazine The Astrophysical Journal Letters was work published, in which a team of scientists from Johns Hopkins University in the United States and the Sorbonne University in France collected Webb data on black holes discovered in the early Universe and provided more evidence in favor of the hypothesis that stars and black holes are born simultaneously. These data will be collected and supplemented with new observations, which will make it possible over time to create a coherent theory of the evolution of objects in the Universe and itself.
Scientists noticed that Webb discovered one supermassive black hole 470 million years after the Big Bang, and another 400 million years later. The mass of the latter was determined at 1.6 million solar. She was at the center of a galaxy that was lighter than the hole at its core. A black hole of such mass could not grow to a fixed value. From what we have observed, black holes arise from the collapse of dying stars over 50 solar masses. Nothing like this could have happened in the early Universe to produce the effect observed there – a tiny galaxy gathered around a black hole.
Researchers conclude that primordial black holes formed simultaneously with the first stars or a little earlier from clouds of primordial matter. The centers of the clouds collapsed and the black hole that emerged in each of them began to emit wind, triggering and accelerating the process of star formation. In fact, primordial black holes became the instrument that assembled and transformed galaxies into the structures that we observe.
“We argue that gas jets of clouds fly off from black holes, turning them into stars and significantly accelerating the rate of star formation, – say the authors of the work. “We can’t exactly see these strong winds or jets far, far away, but we know they must be present because we see a lot of black holes in the early stages of the universe.”