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Title: Constraining dark energy through the stability of cosmic structures

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.
Authors:
 [1] ;  [2] ;  [3]
  1. Department of Physics, University of Crete, and Fo.R.T.H., 711 10 Heraklion (Greece)
  2. Department of Physics, University of Athens, Zographou 157 84 (Greece)
  3. Department of Physics and CCTP, University of Crete, Heraklion 711 10 (Greece)
Publication Date:
OSTI Identifier:
22373598
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCELERATION; ASTROPHYSICS; BUILDUP; COMPARATIVE EVALUATIONS; EQUATIONS OF STATE; EXPANSION; NONLUMINOUS MATTER; STABILITY