Origin of galaxies in the universe

An international team of researchers observes the formation of galaxies from the cold gas of -200 degrees Celsius in the universe.

Super galaxies can form from cold gas clouds in the universe.(Artwork: M.Kornmesser.)

The group of international astronomers concluded that galaxies, the largest galaxies in space , were born from cold gas clouds in the universe, reported on December 2.

Previously, scientists believed that the galaxies formed by merging multiple bodies in the center of a cluster of galaxies. However, the data recorded from the Very Large Array (VLA) telescope and the Australia Telescope Compact Array (ATCA) give different results.

The team used two telescopes to observe the center of a cluster of galaxies, where the Spiderweb galaxy is forming. Here, they find a giant cloud composed largely of hydrogen molecules, the main material to form a new star.

" We were surprised by the very cold gas, about -200 degrees Celsius, " said Matthew Lehnert, a researcher at the Paris Institute of Astrophysics.

This cold gas is not in the smallest galaxy merged into Spiderweb, but is interspersed between the newly developed galaxies and the bodies inside the galaxy cluster. This suggests that the galaxies are deposited directly from giant cosmic clouds .

" Spiderweb helps us observe the birth of a galactic galaxy in the galaxy cluster. Through it, we have the first information on how large celestial bodies form from the sea of ​​gas surrounding them." , astronomer at the University of Leiden, Netherlands, shared.