An early hint of cosmic dawn was seen in a distant galaxy

It seems that the galaxy in the dawn of the universe is the closest proof of cosmic rehabilitation, the period in which the universe was first lit up.

After the big explosion, the early universe was full of hot hydrogen and helium gas spreading, making the universe somewhat transparent. For the next one hundred million years, when the stars began to shine, their light was ionizing hydrogen and helium, allowing photons to flow freely and make the universe transparent, although the exact timing of this is uncertain.

Uwres knows At Copenhagen University in Denmark, his colleagues used James Web Telescope to study a galaxy called Jades-GS-Z13-1-La. The galaxy was seen 330 million years after the Big Bang, making it one of the first well -known galaxies in the universe.

UV light from the galaxy indicates that it was surrounded by a bubble of about 200,000 light years across, which may be the result of interaction with stars with the surrounding cosmic hydrogen. Westock says: Seeing evidence for this is very early in the universe “exceeding our most famous expectations.”

Michelle Trent At the University of Melbourne agrees that the notes are consistent with the cosmic rehabilitation process. “It is surprising and exciting,” says Trint. “I do not expect the ultraviolet light from this galaxy to reach JWST. The cold, neutral hydrogen gas that we expected to surround the galaxy should have been preventing photons. We are witnessing the beginning of rehabilitation.”

The nature of the small galaxy itself is not completely clear; It may be bright due to a group of hot stars and a huge young woman, or a strong central black hole. “This will be the closest known evidence for a super black hole in the middle of a galaxy,” says Trint.

While astronomers have seen other galaxies later with a similar bubble around them, the Jades-GS-Z13-1-La is the first known example. “It is a standard,” he says. Richard Ellis At the University of London. “He tells us that this galaxy should be present for a long time, and this is pushing a little more to the beginning when the galaxies first appeared in the dark.”

JWST managed to discover the secrets of this galaxy only by staring at a relatively long period, about 19 hours. Witstok hopes to soon see other early evidence to re -ventilated. “We have a few candidates,” he says. “We may find it more [back in time]Or perhaps this is the most extreme. “