Baryon Oscillations from Imaging Surveys as a Probe of Dark Energy
Derek Dolney
University of Pennsylvania
dolney@astro.upenn.edu
Additional authors: Bhuvnesh Jain, Masahiro Takada
We examine how well imaging surveys can constrain dark energy models through measurement of baryonic features in galaxy clustering statistics. The galaxy power spectrum alone allows one to constrain dark energy parameters, such as $w_0$ and $w_a$, if biasing is linear and scale independent. We find that measurement of the galaxy bispectrum allows one to constrain independently the galaxy bias and amplitude normalization. We demonstrate that by combining information from the power spectrum and bispectrum, one can break the degeneracy between the bias and normalization and obtain strong constraints.
