X-ray image of the XXL-South Field. Credit: ESA/XMM-Newton/XXL survey consortium/(S. Snowden, L. Faccioli, F. Pacaud)
ESO telescopes have provided an international team with the gift of the third dimension in a plus-sized hunt for the largest gravitationally bound structures in the Universe — galaxy clusters. Observations by the VLT and the NTT complement those from other observatories across the globe and in space as part of the XXL survey — one of the largest ever such quests for clusters.
Galaxy clusters are massive congregations of galaxies that host huge reservoirs of hot gas – the temperatures are so high that X-rays are produced...
Read More
Recent Comments