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We present a multi-probe analysis of the well-known galaxy cluster CLJ1226.9+3332 as a proof of concept for multi-wavelength studies within theframework of the NIKA2 Sunyaev-Zeldovich Large Program (LPSZ). CL J1226.9+3332is a massive and high redshift (z = 0.888) cluster that has already beenobserved at several wavelengths. A joint analysis of the thermal SZ (tSZ)effect at millimeter wavelength with the NIKA2 camera and in X-ray with theXMM-Newton satellite permits the reconstruction of the cluster thermodynamicalproperties and mass assuming hydrostatic equilibrium. We test the robustness ofour mass estimates against different definitions of the data analysis transferfunction. Using convergence maps reconstructed from the data of the CLASHprogram we obtain estimates of the lensing mass, which we compare to theestimated hydrostatic mass. This allows us to measure thehydrostatic-to-lensing mass bias and the associated systematic effects relatedto the NIKA2 measurement. We obtain M500HSE = (7.65 +- 1.03) 1014 Msun andM500lens = (7.35 +- 0.65) 1014 Msun, which implies a HSE-to-lensing biasconsistent with 0 within 20 percent.

Multi-probe analysis of the galaxy cluster CL J1226.9+3332: hydrostatic mass and hydrostatic-to-lensing bias