Cosmological Constraints from Sunyaev-Zel_s14dovich-selected Clusters with X-Ray Observations in the First 178 deg$^2$ of the South Pole Telescope Survey
Benson, B.A. et al, including Mohr, J., Desai, S., Liu, J., Saro, A. and Zenteno, A.
Keywords
cosmic background radiation, cosmology: observations, galaxies: clusters: general, large-scale structure of universe
Abstract
We use measurements from the South Pole Telescope (SPT) Sunyaev-Zel_s14dovich (SZ) cluster survey in combination with X-ray measurements to constrain cosmological parameters. We present a statistical method that fits for the scaling relations of the SZ and X-ray cluster observables with mass while jointly fitting for cosmology. The method is generalizable to multiple cluster observables, and self-consistently accounts for the effects of the cluster selection and uncertainties in cluster mass calibration on the derived cosmological constraints.
