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Constraints on the dark energy equation of state from the imprint of baryons on the power spectrum of clusters

Constraints on the dark energy equation of state from the imprint of baryons on the power spectrum of clusters

Abstract Acoustic oscillations in the baryon–photon fluid leave a signature in the matter power spectrum. The overall shape of the spectrum and the wavelength of the oscillations depend upon the sound horizon scale at recombination. Using the Λ cold dark matter Hubble Volume simulation, we show that the imprint of …