Can Structure Formation Influence the Cosmological Evolution?
arXiv:astro-ph/0111166 · doi:10.1103/PhysRevD.67.043513
Abstract
The backreaction of structure formation influences the cosmological evolution equation for the homogenous and isotropic average metric. In a cold dark matter universe this effect leads only to small corrections unless a substantial fraction of matter is located in regions where strong gravitational fields evolve in time. A``cosmic virial theorem'' states that the sum of gravitational and matter pressure vanishes and therefore relates the average kinetic energy to a suitable average of the Newtonian potential. In presence of a scalar ``cosmon'' field mediating quintessence, however, cosmology could be modified if local cosmon fluctuations grow large. We speculate that this may trigger the accelerated expansion of the universe after the formation of structure.
new "cosmic virial theorem",new references,LaTex,11 pages
References in corpus (5)
Cited by in corpus (52)
- Backreaction in late-time cosmology
- Dark energy from backreaction
- The universe seen at different scales
- Light propagation in statistically homogeneous and isotropic dust universes
- Correspondence between kinematical backreaction and scalar field cosmologies - the `morphon field'
- Backreaction: directions of progress
- Light propagation in statistically homogeneous and isotropic universes with general matter content
- Curvature force and dark energy
- On the onset of cosmological backreaction
- Probing Quintessence with Time Variation of Couplings
- The Effect of Large-Scale Inhomogeneities on the Luminosity Distance
- Constraints on large scale inhomogeneities from WMAP-5 and SDSS: confrontation with recent observations
- Average expansion rate and light propagation in a cosmological Tardis spacetime
- Applicability of the linearly perturbed FRW metric and Newtonian cosmology
- On globally static and stationary cosmologies with or without a cosmological constant and the Dark Energy problem
- Reconciling the local void with the CMB
- A cosmic equation of state for the inhomogeneous Universe: can a global far-from-equilibrium state explain Dark Energy?
- First-order Cosmological Perturbations Engendered by Point-like Masses
- Backreaction in the Lemaitre-Tolman-Bondi model
- Cosmological Backreaction from Perturbations
- Accelerating cosmological expansion from shear and bulk viscosity
- Cosmological Acceleration and Gravitational Collapse
- Dark energy as a mirage
- Implications of Symmetry and Pressure in Friedmann Cosmology. I. Formalism
- Searching for signals of inhomogeneity using multiple probes of the cosmic expansion rate H(z)
- Does small scale structure significantly affect cosmological dynamics?
- Light propagation and the average expansion rate in near-FRW universes
- Neutrino lumps and the Cosmic Microwave Background
- Gauges and Cosmological Backreaction
- Averaging Robertson-Walker Cosmologies
- Structure Formation and Backreaction in Growing Neutrino Quintessence
- Backreaction of Cosmological Perturbations in Covariant Macroscopic Gravity
- Is dark energy an effect of averaging?
- Violation of the FRW consistency condition as a signature of backreaction
- Structure Formation, Backreaction and Weak Gravitational Fields
- The Averaging Problem in Cosmology
- Evidence for the Fifth Element Astrophysical status of Dark Energy
- Coupled dark energy and dark matter from dilatation anomaly
- Backreaction and FRW consistency conditions
- Second-order Cosmological Perturbations Engendered by Point-like Masses
- Neutrino generated dynamical dark energy with no dark energy field
- Backreaction: Gauge and Frame Dependences
- Quantifying effects of inhomogeneities and curvature on gravitational wave standard siren measurements of
- Backreaction as an alternative to dark energy and modified gravity
- Accelerating the Universe with Gravitational Waves
- Well-defined equations of motion without constraint of external sources
- Expansion and Growth of Structure Observables in a Macroscopic Gravity Averaged Universe
- Evaluating backreaction with the ellipsoidal collapse model
- Backreaction in Growing Neutrino Quintessence
- Taylor expansion of luminosity distance in Szekeres cosmological models: Effects of local structures evolution on cosmographic parameters
- Phenomenological aspects of dark energy dominated cosmologies
- Backreaction from inhomogeneous matter fields during large-scale structure formation