doi.org
The <scp>XXL</scp> survey: First results and future
March 2017 • M. Pierre, C. Adami, M. Birkinshaw, L. Chiappetti, S. Ettori, A. E. Evrard, L. Faccioli, F. Gastaldello, Paul Giles, C. Horellou, A. Iovino, E. Koulo…
The XXL survey currently covers two 25 deg 2 patches with XMM observations of ∼10 ks. We summarize the scientific results associated with the first release of the XXL dataset, which occurred in mid‐2016. We review several arguments for increasing the survey depth to 40 ks during the next decade of XMM operations. X‐ray ( z < 2) cluster, ( z < 4) active galactic nuclei ( AGN ), and cosmic background survey science will then benefit from an extraordinary data reservoir. This, combined with deep multi‐ λ observ…