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Lestrade, J.-F. Mac\\'ias-P\\'erez, J. Goupy, K. Schuster, L. Bing, L. Perotto, M. Arnaud, M. Calvo, M. De Petris, M. Mu\\~noz-Echeverr\\'ia, N. Ponthieu, O. Bourrion, P. Ade, P. Andr\\'e, P. Mauskopf, R. Adam, S. Berta, S. Doyle, S. Leclercq, S. Shu, V. Rev\\'eret","submitted_at":"2022-04-29T12:48:30Z","abstract_excerpt":"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 bimodality observed in X-rays. However, it was detected and analysed in the Planck sample as a single, spherical cluster following a universal profile 2. This model can lead to miscalculations of thermodynamical quantities, like the pressure profile. As future multiwavelength cluster experiments will detect more and more objects at high redshifts, it is crucial to quantify this systematic effect. 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