The core of a large galaxy formed 1.5 billion years after the Big Bang, Distant galaxies, more massive than our Milky Way with more than one trillion stars, show that the “core” of massive galaxies in the universe formed 1.5 billion years after the Big Bang, about 1 billion years earlier than previous discoveries.

If we point the telescope toward the sky and take a deep picture, we can see so many galaxies, but our understanding of the formation and growth of these galaxies is still very limited, especially when it comes to large galaxies.

Galaxies classified as dead or living: dead galaxies no longer form stars, while living galaxies still form bright stars. Extinguishing galaxies are galaxies that are dying, which means that star formation is significantly suppressed.

Galaxy galaxies are not as bright as galaxies that are fully alive, but they are not as dark as dead galaxies. The researchers used this brightness spectrum as the first identification line to observe the universe.

The researchers used the W. M. Keck Observatory telescope in Hawaii to observe a dying galaxy in the Subaru / XMM-Newton field. This sky region is closely monitored by several telescopes and provides some data for the investigation of scientists. Tanaka and his team used a device called MOSFIRE on the Keck I telescope to measure galaxies.

They received two-micron measurements in the near-infrared spectrum that cannot be seen by the human eye but have confirmed that light emitted from the galaxy only 1.5 billion years after the Big Bang. The team also confirmed that the galaxy’s star formation depressed.

The stressed star formation tells you that unfortunately, a galaxy is dying, but we want to examine this type of galaxy in detail to find out why it is being erased.

According to Valentino, astronomers believe that large galaxies are the first to die in the history of the universe and that they have the key to understanding why erasure occurs at all.

Besides, we found that large galactic nuclei appeared to be fully formed at the beginning of the universe today, researchers said. How a star moves in a galaxy depends on how much mass the object contains.

A research team has found that stars in distant galaxies appear to move as fast as those closer to home. Similar measurements were previously made when the universe was 2.5 billion years old. We postponed the record by 1.5 billion years and to our surprise found that the point was ripe enough.

Researchers continue to explore how large galaxies formed and how they died in the early universe and look for more massive extinction galaxies in distant universes that can explain the early stages of the process.

For this reason, we will continue to monitor the deep sky with the largest telescopes and expand our demand as more sophisticated facilities become available.