(Phys.org)—Studying substructures of galaxy clusters can reveal distinguished information about the morphology and evolution processes of these gravity-bound groups of galaxies. Optical spectroscopy is very helpful in this matter,capable of unraveling the history of large-scale structure formation in the universe. That's why a team of astronomers from unusual Zealand conducted a series of spectroscopic observations to peek into the galaxy cluster Abell 3888, unveiling that this cluster is dynamically young and might be an indicator of an ongoing or past merger event. A paper detailing the findings was published online on Feb. 11 on the arXiv pre-print server.
Source: phys.org