By Stefano Marchesi

In this paper, we present new mock catalogs of active galactic nuclei

By Sara Walsh

At low redshifts, the observed baryonic density falls far short of the

By François Mernier and Edoardo Cucchetti

In addition to galaxies and dark matter, galaxy clusters

By Pragati Pradhan

X-ray observatories in space are constantly collecting interesting information on X-ray transient