Scientists using the Atacama Large Millimeter / submillimeter Array (ALMA) – an international observatory in collaboration with the U.S. National Science Foundation’s National Radio Astronomy Observatory (NRAO) —have seen a large amount of cold, neutral gas in the outdoor areas of young people. The galaxy A1689-zD1 and the emission of hot gas from the center of the galaxy. These results may shed light on the critical stage of the galaxy’s appearance in the first galaxies when the smaller galaxies begin to change to resemble their later, more orderly cousins. These comments were presented today at a press conference at the 240th session of the American Astronomical Society (AAS) in Pasadena, California. They will be published in the forthcoming edition of the Astrophysical Journal (ApJ).

A1689-zD1 — a young, active, slow-moving star of the Milky Way galaxy — is found some 13 billion years ago in the Virgo constellation. It was found hidden behind the Abell 1689 galaxy collection in 2007 and was confirmed in 2015 due to gravitational lensing, which increased the brightness of the new galaxy by 9x more than 9x. Since then, scientists have continued to study the universe as a possible analog of the emergence of other “normal” galaxies. That label— “normal” —is an important distinction that helped researchers classify the behavior and characteristics of A1689-zD1 into two buckets: standard and unusual, with unusual features that mimic the latest and most significant galaxies.

“A1689-zD1 is found in a very ancient universe — only 700 million years after the Big Bang. This is the time when galaxies were just formed,” said Hollis Akins, an astronomer at Grinnell College and lead author. of research. “What we see in this new study is evidence of processes that may be contributing to the evolution of what we call normal galaxies compared to larger galaxies. More importantly, these systems are the ones we did not believe worked in these galaxies.”

One of the most unusual of these processes is the production of the galaxy and the distribution of stellar fuel, possibly more of it. The team used ALMA’s most sensitive Band 6 receiver to return home to a carbon halo that extends beyond the center of the new galaxy. This may be evidence of continuous star formation in the same area or the result of structural disturbances, such as merging or exit, in the early stages of the construction of the galaxy.

According to Akins, this is not uncommon in the first galaxies. “The carbon gas we have seen in this galaxy is usually found in places similar to neutral hydrogen gas, where new stars are often formed. In the case of A1689-zD1, the universe is probably much more extensive than previously thought. The galaxy’s earlier activity, such as the compaction of complex gravitational galaxies, led to the release of large amounts of gases between these large distances.

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Alice Jane
Alice is the Chief Editor with relevant experience of three years, Alice has founded Galaxy Reporters. She has a keen interest in the field of science. She is the pillar behind the in-depth coverages of Science news. She has written several papers and high-level documentation.

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