Abell 2220
A ROSAT PSPC image of the cluster Abell 2220 with an exposure time of
23.4 ksec. This image has been smoothed with an adaptive smoothing and
includes photons in the energy range of 0.1 - 2.0 keV. The optical
image is from the Digital Sky Survey 2 red plate and the contours are
from the X-ray data.