Simulation of gas accumulation process to form galaxy
Researchers at the Niels Bohr Institute at the University of Copenhagen have witnessed the birth of the universe's first trio of galaxies, dating back 13.3 to 13.4 billion years.
Using the James Webb Space Telescope, the team saw signals coming from large masses of gas accreting and filling a mini galaxy that was in the process of accreting and forming, according to a report published in the journal Science .
While this is how galaxies form according to theories and computer simulations, the process has never been observed in reality until recently.
"We can say that these are the first direct images showing the birth of galaxies," said the study's leader, Professor Kasper Elm Heintz of the Niels Bohr Institute.
Researchers estimate that the birth of the trio of galaxies took place about 400-600 million years after the Big Bang event that gave birth to the universe, meaning during a period when the universe was about 3-4% of its current age.
"In the first few hundred million years after the Big Bang, the first stars appeared, before stars and gas began to accumulate into galaxies. That's the process we observed," said Professor Darach Watson, a member of the research team.
Source: https://thanhnien.vn/lan-dau-quan-sat-su-ra-doi-cua-cac-thien-ha-dau-tien-cua-vu-tru-185240524102335629.htm
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