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A study may overturn textbook concepts of the way the universe was formed... Pictures and video

A study may overturn textbook concepts of the way the universe was formed… Pictures and video

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A group of scientists has revealed the results of a new study that will “overturn textbook concepts” about the way the universe and black holes formed.

A team of astrophysicists proposed an alternative model for how the universe appeared or formed, considering that all black holes, from those tiny pinhead-sized holes to those that cover billions of miles, appeared or emerged immediately after the Big Bang and represent all matter The dark matter, emphasizing that primordial black holes are responsible for all the dark matter scattered in the universe.

The study, conducted by a team of astrophysicists at the University of Miami, Yale University, and the European Space Agency, indicated that black holes have existed since the beginning of the universe and that these primordial black holes can be dark as unexplained, and that they may be responsible for the emergence of all dark matter. in the universe.

“If the data collected after the launch of the James Webb Space Telescope this month prove correct, this discovery could provide scientific understanding of the origins and nature of two cosmic mysteries: Dark matter and black holes.

“This discovery will have several important implications. First, we won’t need[new physics]to explain dark matter. Moreover, it will help us answer one of the most pressing questions in modern astrophysics: how supermassive black holes in the early universe could grow “So fast? Given the mechanisms we observe today in the modern universe, they did not have enough time to form. This would also solve the long-standing puzzle of why the mass of a galaxy is always consistent with the mass of the supermassive black hole at its center.”

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Nico Cappellotti

Assistant Professor of Physics at the University of Miami and first author of the study

Dark matter, which has not been directly observed to this day, is believed to be most of the matter in the universe and serves as a pillar on which galaxies form, grow and evolve.

On the other hand, black holes have been observed, which can be found in the centers of most galaxies, and which form a point in space where matter is highly compressed, creating intense gravity, According to the scientific journal “scitechdaily”.

In turn, Director of Science at the European Space Agency (ESA), Gunther Hasinger, explained that “black holes of different sizes remain a mystery to this day, we do not understand how supermassive black holes can grow so huge in a relatively short time since the formation of the universe.” .

Scientists modified the first fraction of a second after the Big Bang

The new theory model proposed by Hawking and fellow physicist Bernard Carr modified the way the universe formed, with researchers arguing that in the first millisecond after the Big Bang, small fluctuations in the density of the universe may have created ripples and asymmetries in “lumpy” regions that had excess mass. These ripples, or lumps, collapsed and turned into black holes.

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and sigh Scientists that this theory may be Correct with a few minor tweaks, their model shows that the first stars and galaxies formed around black holes in the early universe. They also suggested that primordial black holes would have had the ability to grow into supermassive black holes by feeding on gas and stars in their vicinity, or by merging with other black holes.

“The existence of primordial black holes, they could be the seeds from which all supermassive black holes, including those in the center of the Milky Way, are formed… What I find personally exciting about this idea is how well it unites the two difficult problems of I’m working on them, which are investigating the nature of dark matter and the formation and growth of black holes, and solving them in one fell swoop.”

Priyamvada Natarajan

Professor of Astronomy and Physics at Yale . University

In turn, Hasinger said, “If the first stars and galaxies did indeed form in the so-called dark ages, the Webb should be able to see evidence of them” by detecting and capturing gravitational wave signals from early mergers of primordial black holes.