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Descrizione
I will present the resolved thermodynamic of the most distant cluster for which
such a measurement has ever been performed, IDCSJ1426 at z=1.75, which turned
out also to be the more precise measurement for every high redshift cluster
thanks to our joint use of both X-ray and SZ data. Profiting of the largest ever
redshift baseline, I determined the evolution of the thermodynamic profiles of
this cluster down to z=0.07, our reference local comparison sample, with
unprecedent precision over a 10 Gyr baseline. In the talk, I will also introduce
a new definition of the evolutionary rate to effectively compare ancestors and
descendants. It turned out to have the advantage of separating cluster
evolution, dependence on mass, pseudo-evolution and to return a number with
unique interpretation, unlike other definitions.
