Deep Chandra observations of the stripped galaxy group falling into Abell 2142

Understand

In the local Universe, the growth of massive galaxy clusters mainly operates through the continuous accretion of group-scale systems.

• The infalling group in Abell 2142 is the poster child of such an accreting group, and as such, it is an ideal target to study the astrophysical processes induced by structure formation.
• We present the results of a deep (200 ks) observation of this structure with Chandra, which highlights the complexity of this system in exquisite detail.
• In the core of the group, the spatial resolution of Chandra reveals the presence of a leading edge and a complex AGN-induced activity.