SMOLCIC , V.

We show that the most distant X-ray-detected cluster known to date, Cl J1001 at ${z}_{\mathrm{spec}}=2.506$, hosts a strong overdensity of radio sources. Six of them are individually detected (within $10^{\prime\prime} $) in deep $0\buildrel{\prime\prime}\over{.} 75$ resolution VLA 3 GHz imaging, with ${S}_{3\mathrm{GHz}}\gt 8\,\mu...

Context. The XXL Survey is the largest homogeneous and contiguous survey carried out with XMM-Newton. Covering an area of 50 deg(2) distributed over two fields, it primarily investigates the large-scale structures of the Universe using the distribution of galaxy clusters and active galactic nuclei as tracers of the matter distribution. Aims....