# Future evolution of cosmic structure in an accelerating universe

@article{Busha2003FutureEO, title={Future evolution of cosmic structure in an accelerating universe}, author={Michael T. Busha and Fred C. Adams and Risa H. Wechsler and August E. Evrard}, journal={The Astrophysical Journal}, year={2003}, volume={596}, pages={713-724} }

Current cosmological data indicate that our universe contains a substantial component of dark vacuum energy that is driving the cosmos to accelerate. We examine the immediate and longer term consequences of this dark energy (assumed here to have a constant density). Using analytic calculations and supporting numerical simulations, we present criteria for test bodies to remain bound to existing structures. We show that collapsed halos become spatially isolated and dynamically relax to a…

## 67 Citations

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## References

SHOWING 1-10 OF 48 REFERENCES

Future evolution of nearby large-scale structures in a universe dominated by a cosmological constant

- Physics
- 2003

Long-term future of extragalactic astronomy

- Physics
- 2002

If the current energy density of the universe is indeed dominated by a cosmological constant, then high-redshift sources will remain visible to us only until they reach some finite age in their…

Dark Energy and the Observable Universe

- Physics
- 2002

We consider ever-expanding big bang models with a cosmological constant, Λ, and investigate in detail the evolution of the observable part of the universe. We also discuss quintessence models from…

Clusters, Cosmology and Mergers

- Physics
- 2002

The character of the galaxy cluster population holds clues to the identity of the particular world model that best describes our universe. Although clusters are complex in their fine detail, their…

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

- Physics
- 1998

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 " z " 0.62. The luminosity distances of these objects are determined by methods that…

Supernova limits on the cosmic equation of state

- Physics
- 1998

We use Type Ia supernovae studied by the High-z Supernova Search Team to constrain the properties of an energy component that may have contributed to accelerating the cosmic expansion. We find that…

Cosmic Concordance and Quintessence

- Physics
- 2000

We present a comprehensive study of the observational constraints on spatially flat cosmological models containing a mixture of matter and quintessence—a time-varying, spatially inhomogeneous…

Using the evolution of clusters to constrain Omega

- Physics
- 1996

The population of rich galaxy clusters evolves much more rapidly in a universe with critical density than one with low density, thus offering the possibility of determining the cosmological density…

A Universal Density Profile from Hierarchical Clustering

- Physics
- 1997

We use high-resolution N-body simulations to study the equilibrium density profiles of dark matter halos in hierarchically clustering universes. We find that all such profiles have the same shape,…

Cosmological constant and the fate of the DDM theory

- Physics
- 2001

We investigate the impact of the non-zero cosmological constant on the classical decaying dark matter theory developed by the late Dennis Sciama. In particular, we concentrate on the change in…