Dancing 'comet' clusters in Abell 2028, seen by XMM-Newton
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Image courtesy of Fabio Gastaldello (INAF-IASF Milano and University of California Irvine) and ESA.
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About this Image
Abell 2028 is a very interesting double cluster. The figure shows the X-ray surface brightness in the 0.5-2 keV band revealing the interaction between two sub-clusters which show stripped tails like comets. Sharp surface brightness discontinuities called cold fronts have been detected at the leading edges of the two substructures.
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