Best evidence yet for galactic merger in distant protocluster

10 noviembre 2014

Nestled among a triplet of young galaxies more than 12.5 billion light-years away is a cosmic powerhouse: a galaxy that is producing stars nearly 1,000 times faster than our own Milky Way. This energetic starburst galaxy, known as AzTEC-3, together with its gang of calmer galaxies may represent the best evidence yet that large galaxies grow from the merger of smaller ones in the early Universe, a process known as hierarchical merging.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/isq1nzHFwj4/141110161032.htm

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