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The outskirts of galaxy clusters host complex interactions between theintra-cluster and circumcluster media. During cluster evolution, ram-pressurestripped gas clumps from infalling substructures break the uniformity of thegas distribution, which may lead to observational biases at large radii.Assessing the contribution of gas clumping, however, poses observationalchallenges, and requires robust X-ray measurements in the background-dominatedregime of cluster outskirts. The aims of this work are isolating faint gasclumps from field sources and from the diffuse emission in the Abell 1795galaxy cluster, then probing their impact on the observed surface brightnessand thermodynamic profiles. We performed imaging analysis on deep ChandraACIS-I observations of the outskirts of Abell 1795, extending to$\sim1.5r_{200}$ with full azimuthal coverage. We built the $0.7-2.0$ keVsurface brightness distribution from the adaptively binned image of the diffuseemission and looked for clumps as $>2\sigma$ outliers. Classification of theclump candidates was based on Chandra and SDSS data. Benefiting from theChandra point source list, we extracted the thermodynamic profiles of theintra-cluster medium from the associated Suzaku XIS data out to $r_{200}$ usingmultiple point source and clump candidate removal approaches. We identified 24clump candidates in the Abell 1795 field, most of which are likely associatedwith background objects, including AGN, galaxies, and clusters or groups ofgalaxies, as opposed to intrinsic gas clumps. These sources had minimal impacton the surface brightness and thermodynamic profiles of the cluster emission.After correcting for clump candidates, the measured entropy profile stilldeviates from a pure gravitational collapse, suggesting complex physics at playin the outskirts, including potential electron-ion non-equilibrium andnon-thermal pressure support.

The Outskirts of Abell 1795: Probing Gas Clumping in the Intra-Cluster Medium