Two galactic cores merged for the first time at the dawn of the universe

Simulation of two quasars in the process of merging

GEMINI INTERNATIONAL OBSERVATORY

A team of Japanese astronomers has discovered two galactic cores merging at their most distant location ever, at a time when the universe was less than 1 billion years old.

The two galactic cores, in the form of quasars, are so far the only pair found in the Dawn period of the universe.

According to a report published in The Astrophysical Journal Letters , author Yoshiki Matsuoka, an astronomer at Ehime University (Japan), said his team used the Subaru telescope to observe the group.

"There have been several hundred quasars recorded in the early life of the universe, but this is the first time we have found two at the same time," said Matsuoka.

"Our discovery provides the first evidence that such a pair existed at the dawn of the universe," added Matsuoka. This supports the hypothesis that the universe evolved through merger events.

The dawn of the universe is the early stage, when the first light sources formed. This stage lasted about 50 million years after the Big Bang event until the time when the universe was about 1 billion years old.

Source: https://thanhnien.vn/lan-dau-phat-hien-2-loi-thien-ha-sap-nhap-vao-thoi-binh-minh-cua-vu-tru-185240618105525461.htm