It was discovered by a group of astronomers from the University of Hawaii ‘Galactic bubble’ could be fossil remains of the Big Bang, According to a study published in Astrophysical Journal. Researchers are analyzing whether this huge structure, located 820 million light-years from Earth, is linked to the birth of the universe.
Astronomer Brent Tully of the Institute for Astronomy at the University of Hawaii and his team They found the bubble within a network of galaxies, and named it Hoʻoleilana. Term referring to a Hawaiian creative song that evokes the origin of the structure, The academic institution is reported on its official website.
“We weren’t looking for him. “It is so large that it extends to the edges of the sector of sky that we were analyzing.”Tully explained. Regarding the density of galaxies, he explained that it has a “much stronger characteristic than expected,” as “The large diameter of 1,000 million light-years exceeds theoretical expectations“.
The discovery of Haulana happened by chance. Through studies take over the catalogs of new galaxies. “It was something unexpected,” said French researcher Daniel Pomared. The astrophysicist and co-author of the study has been studying mapping this region of the sky.
The two researchers then contacted a young Australian cosmologist, Colan Howlett, of the University of Brisbane. “This third author of the study, an expert in baryon acoustic oscillations (BAO) and in analyzing large catalogs of galaxies,”Mathematically select the spherical structure that best matches the data presented“.
This allowed us to watch Three-dimensional figure of Holilana And the The location of the galactic archipelago that composes it.
A long-term scientific discovery
Discover the galaxy bubble can help Enhance scientists’ knowledge of the effects of galaxy evolutionaccording to the University of Hawaii.
Astronomers identified the bubble using data from Cosmicflows-4, the largest collection of precise distances to galaxies to date. They believe this Can This is the first time that a single BAO-associated structure has been identified.
This discovery has been part of a “very long scientific process,” according to Bomaredi, since then Confirms the validity of the phenomenon described in 1970 By the American cosmologist and Nobel Prize winner in physics, Jim Peebles.
The scientist explained that in the primitive universe, which then consisted of a plasma of particles and light, the processes in question produced sound waves. These vibrations They will create a kind of bubble inside the plasma with the material in the middle.
the operation It stopped 380,000 years after the Big Bang. “Freeze” the shape of these bubbles. Then it grows according to the expansion of the universe, like the “fossils” of those eras.
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