The diffuse light that spreads through groups and clusters of galaxies is made of free-floating
stars not bound to any galaxy. This is known as the intracluster light (ICL) and holds …

Galaxy shapes are not randomly oriented, rather they are statistically aligned in a way that
can depend on formation environment, history and galaxy type. Studying the alignment of …

Cosmological simulations are an important theoretical pillar for understanding non-linear
structure formation in our Universe and for relating it to observations on large scales. In …

Intracluster light (ICL) is diffuse light from stars that are gravitationally bound not to individual
member galaxies, but to the halo of galaxy clusters. Leading theories, predict that the ICL …

Recent observations have highlighted a significant population of faint but large (r eff> 1.5
kpc) galaxies in the Coma cluster. The origin of these ultra diffuse galaxies (UDGs) remains …

We present the results of a deep imaging survey of the Virgo cluster of galaxies,
concentrated around the cores of Virgo subclusters A and B. The goal of this survey was to …

We investigate the formation of brightest cluster galaxies (BCGs) in the TNG300
cosmological simulation of the IllustrisTNG project. Our cluster sample consists of 700 …

Not all the light in galaxy groups and clusters comes from stars that are bound to galaxies. A
significant fraction of it constitutes the so-called intracluster or diffuse light (ICL), a low …

Galaxy clusters as gravitational lenses play a unique role in astrophysics and cosmology:
they permit mapping the dark matter distribution on a range of scales; they reveal the …

Multiwavelength deep observations are a key tool to understand the origin of the diffuse light
in clusters of galaxies: the intracluster light (ICL). For this reason, we take advantage of the …