Joint XMM/Chandra Accepted Cycle 20 Targets and Abstracts
Proposal Number
Subject Category
PI Name
Chandra Time
Title
20800052
CLUSTERS OF GALAXIES
Stefano Ettori
80.00ks
Witnessing the culmination of structure formation in the Universe
Subject Category: CLUSTERS OF GALAXIES
Proposal Number: 20800052
Title: Witnessing the culmination of structure formation in the Universe
PI Name: Stefano Ettori
The targets of our XMM Heritage project are nearby galaxy clusters (z<0.6) selected accordingly to their
SNR in Planck maps, and have dimensions from 6 to exceeding XMM FOV (in the latter case we also
have offset pointings). They include 8 objects that have neither Chandra, XMM (nor Swift) exposures,
and that are expected to range from 8 to 20 arcmin. To decide about their center, we cannot rely on
Planck images because the resolution is very poor (˜5-10 ), but only rely on the RASS and optical images.
However, the positioning of the cluster in the XMM FOV is important. Indeed, we must avoid that the
PN camera gaps cross the center of the cluster (important products of our analysis are the radial profiles)
and/or interesting substructures.