A novel X-ray-SZ imaging programme to probe ICM physics at low mass and high z

We propose to observe 15 galaxy clusters from the lowmass part of arepresentative SZselected sample of 45 objects at 0.5<z<0.9, forming a GTProgramme of highresolution (<18) SZ observations with NIKA2. The full sample,extracted from Planck and ACT, covers an unprecedented mass range at theseredshifts. Archival Xray data are available at high mass. Combining the gasdensity from XMM and the pressure from NIKA2, we will study high precisionindividual pressure, entropy and HE mass profiles, their dispersion, and therelations between Ysz, Yx and M500. The present sample doubles the (log) massrange, allowing us to better probe the impact of nongravitational processes onthe ICM. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]