August 30, 2018

SPACE | Aug 30, 2018 | ~ Unstable Monster Galaxy Hosts Runaway Star Formation ~ | .. Some 12.4 billion light-years from Earth, a monster galaxy can be seen forming stars 1,000 times faster than the Milky Way does. It's less of a mess than researchers expected — but its frenetic pace can't last. Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA) observatory in Chile have gotten the closest look ever at the galaxy, called COSMOS-AzTEC-1. So-called extreme starburst galaxies may be the predecessors of modern galaxies like the Milky Way, and so understanding them lends insight into how today's galaxies formed and evolved. Researchers knew the galaxy was rich in star-forming gas when they first spotted it 10 years ago, but the details of the gassy giant revealed with ALMA weren't what they expected. "A real surprise is that this galaxy seen almost 13 billion years ago has a massive, ordered gas disk that is in regular rotation instead of what we had expected, which would have been some kind of a disordered train wreck that most theoretical studies had predicted," Min Yun, an astronomer at University of Massachusetts, Amherst, and co-author on the new work, said in a statement .. | Blogger: [🌌Researchers have been wondering for a long time how early galaxies could form stars so quickly, the researchers said ~ SPACE - NASA Magazine✨]... |

An artist's impression of the ancient, huge galaxy COSMOS-AzTEC-1, which researchers have found has three dense, star-forming regions. The galaxy can be seen forming stars at an extremely fast rate.Credit: National Astonomical Observatory of Japan