Table 1:
Coordinates of the AGN and the cluster. The AGN is almost at
the centre of the cluster emission. We also show the count rate for the
two objects (normalized for the different apertures, see text for
details) and the luminosities, both in the [0.3-10 keV] band (bolometric
luminosity for the cluster is given in Table 2). The contribution
of the AGN is larger than the cluster luminosity. Both objects are at the
same redshift of 0.52. An optical counterpart of the AGN is marked in Fig. 7.