Cluster Mergers

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KJNH06: NGC7618 group-group merger.
Examines the system in x-rays. Finds a front-like feature and agrees that it is sloshing gas. Cites Tittley&Henriksen.

SP06: A2255 merger after core-crossing.
Rosat and XMM temperatures do not agree. Could be due to cool gas in the central galaxies. Could be due to the need for a two-temperature fit.

Feretti06: Feretti, Bacchi, Slee, et al
A548b Radio Cluster Relics
The authors report on 2 cluster relics. They are both on the same side of the cluster, which is apparently unusual. "cluster relic": a diffuse radio structure in a galaxy cluster not associated with any galaxy or jet. Believed to be formed at shock fronts during cluster mergers.

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