Constraining Dark Energy through the Stability of Cosmic Structures
arXiv:1401.3742 · doi:10.1088/1475-7516/2014/05/017
Abstract
For a general dark-energy equation of state, we estimate the maximum possible radius of massive structures that are not destabilized by the acceleration of the cosmological expansion. A comparison with known stable structures constrains the equation of state. The robustness of the constraint can be enhanced through the accumulation of additional astrophysical data and a better understanding of the dynamics of bound cosmic structures.
11 pages, 1 figure