2008

What is the best way to measure baryonic acoustic oscillations?

Sanchez, Ariel G., Baugh, Carlton M., Angulo, Raul

Understand

Oscillations in the baryon-photon fluid prior to recombination imprint different signatures on the power spectrum and correlation function of matter fluctuations.

  • The measurement of these features using galaxy surveys has been proposed as means to determine the equation of state of the dark energy.
  • The accuracy required to achieve competitive constraints demands an extremely good understanding of systematic effects which change the baryonic acoustic oscillation (BAO) imprint.
  • We use 50 very large volume N-body simulations to investigate the BAO signature in the two-point correlation function.

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