image described below

A ROSAT PSPC image of the cluster A2151 with an exposure time of 12.5 ksec. This image has been smoothed with a 15" gaussian and only includes photons in the energy range of 0.5 - 2.0 keV. Two major subclumps can be seen in this image. This cluster is unsual in that the gas temperature is low. The bright clump has an X-ray temperature of 1.67 keV while the second brightest feature has an X-ray temperature even lower, 1.03 keV.