Tracing the Universe: X-ray survey supports standard cosmological model

On: October 4, 2018

Scanning the sky for X-ray sources, ESA’s XMM-Newton X-ray observatory has been busy with the XXL Survey, its largest observational programme to date. The second batch of data from the survey has just been released, including information on 365 galaxy clusters, which trace the large-scale structure of the Universe and its evolution through time, and on 26 000 active galactic nuclei (AGN).

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