New research shows that the world’s early cosmic filaments carried cold gas and primitive galaxies, node-shaped to Halo’s dark matter, where they all collapsed together to form giant galaxies. The larger the galaxy, the more cold gas it needs to converge and grow from a source of cold molecular gases that are as large as 100 billion times the mass of our sun.
“Where,” asked Iowa University astronauts in a new study, “did those early, large galaxies get so much cold gas when they came around with warmer places?”
Halo Dark-Matter Repository
New speculative evidence revealed that cold gas pipes that weaved through the hot atmosphere were in a dark cover of an early giant galaxy, providing the materials for the astronomy to form stars. The scientists studied a gaseous region around a previously unnamed galaxy that was formed when the universe was about 2.5 billion years old, or just 20% of its present age. . It took the team five years to mark through the redevelopment of their exact location and distance using the Atacama Large Millimeter / Submillimeter Array, to make peers as the galaxy’s warm, dusty environment target.
“This is the prototype, the first case where we found a scale halo stream that feeds a very large galaxy,” said Hai Fu, an associate professor in the Iowa Department of Physics and Astronomy and lead author and correspondent of the study. “In our view, such currents can fill the reservoir in around a billion years, which is much shorter than the time available to the astronomer at the time of our observation. ”
Chemical fingerprints prove
Crucially, the researchers found two projected back quasars at close distances to the target galaxy, similar to how the movement of Jupiter and Saturn drew them closer together when they looked at Earth. during the Great Consortium in December last year. As a result of this special arrangement, the light of the quasars entering the halo gas left the galaxy in the face of chemical “fingerprints” that confirmed a narrow flow of cold gas.
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These chemical fingerprints showed a low density of heavy elements such as aluminum, carbon, iron and magnesium in the gas in the streams. Since these elements are formed when the star is still shining and released into the surrounding center when the star dies, the researchers concluded that the streams of cold gas flowing in from the outside, rather than being ejected from the star itself.
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Quasars reflect the flow
“Among the 70,000 starburst galaxies in our study, this is the only one associated with two quasars that are both close enough to study halo gas. Moreover, the two quasars are projected on the same side of the galaxy so that their light is blocked by the same current at two different distances. ”Fu says. “So I am very fortunate that nature has given us this opportunity to discover this great artery leading to an amazing galaxy heart during adolescence. ”
Source: “A long stream of cool metal-cooled gas around a massive galaxy starburst at Z = 2.67,” was published in the Astrophysical Journal Feb. 24.
The Daily Galaxy, Max Goldberg, through the University of Iowa
Top page image credit: showing filaments in a large galaxy universe using the C-EAGLE symbol.
Joshua Borrow using C-EAGLE.