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

• Published in: Monthly Notices of the Royal Astronomical Society: Letters
• Main Authors: Angulo, R., Baugh, C. M., Frenk, C. S., Bower, R. G., Jenkins, A. R., Morris, S. L.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Blackwell 2005
• Subjects: Hubble; South Pole; South pole
• Online Access: http://dro.dur.ac.uk/4219/; http://dro.dur.ac.uk/4219/1/4219.pdf; https://doi.org/10.1111/j.1745-3933.2005.00067.x

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 impr...