May 19, 2022

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Amazing details about the farthest galaxy in the universe, 13.5 billion light-years from Earth!

Amazing details about the farthest galaxy in the universe, 13.5 billion light-years from Earth!

According to a recent study, astronomers have observed a distant galaxy 13.5 billion light-years away, and its results should be confirmed by advanced observations.

After observing the sky through four telescopes for more than 1,200 hours, “HD1” discovered that “its red color matches the properties of a galaxy 13.5 billion light years away.” The galaxy Yucci Hariganeh explains in a statement released on the sidelines of the study.

Since the “HD1” galaxy is farther away than the “GN-z11” galaxy, additional data collected by the ALMA Laboratory in Chile confirm the results of the new study. 100 million years.

Thus, the galaxy HD1 formed 300 million years after the Big Bang, the time when the universe appeared, and the light it emitted took 13.5 billion years to reach Earth.

To determine the age of the galaxy, scientists measured the red change of its original light. As the universe expands, the distance between objects expands. As we go backwards over time, the distance between objects increases and their light becomes more elongated and wavelengths, they become increasingly red.

Yochi Harikan, an astronomer at the University of Tokyo and one of the authors of the study, published in the Journal of Astrophysics, says: “When I saw red, I got goosebumps.

But in light of this discovery a problem arises because scientists have discovered the extraordinary intensity of ultraviolet radiation in the galaxy, which is a sign of activity unnoticed by theoretical models of galaxy formation.

The authors therefore put forward two hypotheses that the first galaxy would have been a fertile ground for the formation of stars, and that about 100 of them would have formed annually, ten times more than expected.

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These stars represent a “third-star population” that astronomers have yet to discover.

These first-generation stars are larger, brighter, and hotter than modern stars, said Fabio Bakucci, lead researcher at the Harvard Astronomical Center in the United States.

The second hypothesis is that there is a large black hole in the center of the galaxy that emits strong ultraviolet radiation by swallowing large amounts of gas.

But for this phenomenon to occur, the black hole must be one hundred million at the completion of the Sun. In this context, Francois Coombs, an astronomer at the Paris-PSL laboratory who is not involved in the preparation of the study, says that it is remotely possible to reach a similar level in a very short time.

To clear up the confusion, the HD1 galaxy has become the target of the James Webb Space Telescope, which has the unparalleled ability to see the most distant universe.


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