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The relaxed galaxy cluster Zwicky 3146 is analyzed via the SuperModel, a toolalready tested on many clusters since 2009. In particular, this analysis isfocused on the intracluster medium X-ray temperature data measured byXMM-Newton up to r_{500}. A previous analysis was based on the temperatureprofile derived from the Sunyaev-Zeldovich effect pressure data. The gas massfraction f_{gas} is obtained from the resulting SuperModel temperature profileextrapolated up to the virial radius R, that turns out in agreement with thesteep temperature profiles observed by Suzaku, and from the gas density profileobserved by XMM-Newton. The comparison between f_{gas} with the universal valueindicates a non-thermal pressure component, p_{nth}, in the cluster outskirts.The SuperModel analysis shows a ratio alpha(R) (about 50%) of p_{nth} to thetotal pressure greater than the values found by simulations, highlighting thepossible presence of accreting substructures and inhomogeneities in the gasdensity profile. Once that this profile is corrected for clumpiness, the levelof p_{nth} is considerably reduced. However, a significant turbulence (alpha(R)about 20%) and entropy flattening are still present in the outskirts of thegalaxy cluster Zwicky 3146.

SuperModel Predictions in the Outskirts of the Galaxy Cluster Zwicky 3146