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We present the results of deep Chandra, XMM-Newton and Suzaku observations ofthe nearby galaxy cluster Abell 85, which is currently undergoing at least twomergers, and in addition shows evidence for gas sloshing which extends out to r~ 600 kpc. One of the two infalling subclusters, to the south of the maincluster center, has a dense, X-ray bright cool core and a tail extending to thesoutheast. The northern edge of this tail is strikingly smooth and sharp(narrower than the Coulomb mean free path of the ambient gas) over a length of200 kpc, while toward the southwest the boundary of the tail is blurred andbent, indicating a difference in the plasma transport properties between thesetwo edges. The thermodynamic structure of the tail strongly supports an overallnorthwestward motion. We propose, that a sloshing-induced tangential, ambient,coherent gas flow is bending the tail eastward. The brightest galaxy of thissubcluster is at the leading edge of the dense core, and is trailed by the tailof stripped gas, suggesting that the cool core of the subcluster has beenalmost completely destroyed by the time it reached its current radius of r ~500 kpc. The surface-brightness excess, likely associated with gas strippedfrom the infalling southern subcluster, extends toward the southeast out to atleast r_500 of the main cluster, indicating that the stripping of infallingsubclusters may seed gas inhomogeneities. The second merging subcluster appearsto be a diffuse non-cool core system. Its merger is likely supersonic with aMach number of ~ 1.4.

The growth of the galaxy cluster Abell 85: mergers, shocks, stripping and seeding of clumping