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Cosmological constraints from the thermal Sunyaev Zeldovich power spectrum and cluster counts


  • Dr. Boris BOLLIET

Auteurs principaux


In this talk we review the formalism for the modelling of the Sunyaev Zeldovich (SZ) power spectrum and cluster counts and how to compare them with observations. We outline their dependencies on cosmological parameters, as well as the mass bias associated with the X-ray calibration of the cluster masses. We outline the role played by the pressure profile of the intra cluster medium, for which NIKA2 is collecting new and precise data. Then, we discuss the consistency between Planck SZ data, Planck Primary CMB, and other LSS probes. Finally, we study constraints on extensions of the LCDM cosmology by including massive neutrinos and the equation of state of dark energy in the analysis.