Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1771365 | Astroparticle Physics | 2008 | 4 Pages |
Abstract
Redshift distortion measurements from galaxy surveys include sensitivity to the gravitational growth index distinguishing other theories from Einstein gravity. This gravitational sensitivity is substantially free from uncertainty in the effective equation of state of the cosmic expansion history. We estimate the future sensitivity and complementarity of this technique exploring the growth history of the universe. We also illustrate the bias in the traditional application to matter density determination using f=Ωm(a)0.6f=Ωm(a)0.6, and how to avoid it.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
Eric V. Linder,