2003/07/26 by Hee-Jong Seo, Hee‐Jong Seo, Daniel J. Eisenstein · 809 citations
Physics and Astronomy · #Astronomy #Astrophysics #Baryon acoustic oscillations #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Hubble's law #Physics #Radio Astronomy Observations and Technology #Redshift #Redshift survey #Redshift-space distortions #astro-ph
paper · pdf · doi:10.1086/379122
published in The Astrophysical Journal 598(2), 720-740 (IOP Publishing) · submitted to ApJ, 24 pages, LaTeX
arxiv created 2003/07/26 · openalex publication_date 2003/12/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that the measurement of the baryonic acoustic oscillations in large high-redshift galaxy surveys offers a precision route to the measurement of dark energy. The cosmic microwave background provides the scale of the oscillations as a standard ruler that can be measured in the clustering of galaxies, thereby yielding the Hubble parameter and angular diameter distance as a function of redshift. This, in turn, enables one to probe dark energy. We use a Fisher matrix formalism to study the statistical errors for redshift surveys up to z = 3 and report errors on cosmography while marginalizing over a large number of cosmological parameters, including a time-dependent equation of state. With redshift surveys combined with cosmic microwave background satellite data, we achieve errors of 0.037 on Ω X , 0.10 on w ( z = 0.8), and 0.28 on dw ( z )/ dz for the cosmological constant model. Models with less negative w ( z ) permit tighter constraints. We test and discuss the dependence of performance on redshift, survey conditions, and the fiducial model. We find results that are competitive with the performance of future Type Ia supernova surveys. We conclude that redshift surveys offer a promising independent route to the measurement of dark energy.