• DOI:10.1086/378043
• Corpus ID: 15764445

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}
}

• M. Busha, F. Adams, +1 author A. Evrard
• Published 12 May 2003
• Physics
• The Astrophysical Journal

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 particular density profile with logarithmic slope steeper than -3 at radii beyond r200. The asymptotic form of the spacetime metric is then specified. We develop this scenario further by determining the effects of the accelerating expansion on the background radiation fields and individual particles. In an appendix, we generalize these results to include quintessence.