Galaxy clusters play a key role in understanding cosmological processes. Therefore, there are many galaxy surveys aimed at mapping the various galaxies and clusters and studying their properties. Distant clusters are harder to locate, and distant X-ray luminous clusters are quite rare. Large area surveys are needed in order to detect these clusters.
“Such massive galaxy clusters are thought to be rare objects in the distant Universe. They can be used to test cosmological theories,” said Georg Lamer. In fact, the mere existence of this cluster confirms the existence of dark energy, a mysterious form of matter accounting for 75% of the matter in the universe, and causing the acceleration of the Universe’s expansion.