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PSZ2 G091.83+26.11 is a galaxy cluster with M500 = 7.43 x 10^14 Msun at z =0.822 1. This object exhibits a complex morphology with a clear bimodalityobserved in X-rays. However, it was detected and analysed in the Planck sampleas a single, spherical cluster following a universal profile 2. This model canlead to miscalculations of thermodynamical quantities, like the pressureprofile. As future multiwavelength cluster experiments will detect more andmore objects at high redshifts, it is crucial to quantify this systematiceffect. In this work, we use high-resolution observations of the NIKA2camera3,4,5,6 to integrate the morphological characteristics of the cluster inour modelling. This is achieved by fitting a two-halo model to the SZ image andthen by reconstruction of the resulting projected pressure profile. We thencompare these results with the spherical assumption.

Massive merging cluster PSZ2G091 as seen by the NIKA2 camera