Radio observations prove the existence of relativistic particles and magnetic field associated
with the intra-cluster-medium (ICM) through the presence of extended synchrotron emission …

The current understanding of astrophysical magnetic fields is reviewed, focusing on their
generation and maintenance by turbulence. In the astrophysical context this generation is …

We present constraints on cosmological parameters using number counts as a function of
redshift for a sub-sample of 189 galaxy clusters from the Planck SZ (PSZ) catalogue. The …

The most successful cosmological models to date envision structure formation as a
hierarchical process in which gravity is constantly drawing lumps of matter together to form …

We discuss the measurements of the galaxy cluster mass functions at z≈ 0.05 and z≈ 0.5
using high-quality Chandra observations of samples derived from the ROSAT PSPC All-Sky …

We examine the X-ray luminosity scaling relations of 31 nearby galaxy clusters from the
Representative XMM-Newton Cluster Structure Survey (REXCESS). The objects are …

Weak gravitational lensing of background galaxies provides a direct probe of the projected
matter distribution in and around galaxy clusters. Here, we present a self-contained …

The Chandra image of the merging, hot galaxy cluster 1E 0657-56 reveals a bow shock
propagating in front of a bullet-like gas cloud just exiting the disrupted cluster core. This is …

The currently operating X-ray imaging observatories provide us with an exquisitely detailed
view of the Megaparsec-scale plasma atmospheres in nearby galaxy clusters. At z< 0.05, the …

We review the present theoretical and numerical understanding of magnetic field
amplification in cosmic large-scale structure, on length scales of galaxy clusters and beyond …