"Swiss-Cheese" Inhomogeneous Cosmology & the Dark Energy Problem

Abstract

We study an exact swiss-cheese model of the Universe, where inhomogeneous LTB patches are embedded in a flat FLRW background, in order to see how observations of distant sources are affected. We find negligible integrated effect, suppressed by (L/R_{H})^3 (where L is the size of one patch, and R_{H} is the Hubble radius), both perturbatively and non-perturbatively. We disentangle this effect from the Doppler term (which is much larger and has been used recently \cite{BMN} to try to fit the SN curve without dark energy) by making contact with cosmological perturbation theory.

35 pages, 6 figures

References in corpus (5)

• Report of the Dark Energy Task Force
• On cosmological observables in a swiss-cheese universe
• Mimicking Dark Energy with Lemaitre-Tolman-Bondi Models: Weak Central Singularities and Critical Points
• Nonlinear Structure Formation and "Apparent" Acceleration: an Investigation
• Local Voids as the Origin of Large-angle Cosmic Microwave Background Anomalies: The Effect of a Cosmological Constant

Cited by in corpus (103)

• Dark Energy
• Inhomogeneous cosmological models: exact solutions and their applications
• The nonlinear matter and velocity power spectra in f(R) gravity
• (Mis-)Interpreting supernovae observations in a lumpy universe
• Observational constraints on inhomogeneous cosmological models without dark energy
• Testing the Void against Cosmological data: fitting CMB, BAO, SN and H0
• Systematic simulations of modified gravity: symmetron and dilaton models
• Archipelagian Cosmology: Dynamics and Observables in a Universe with Discretized Matter Content
• A (giant) void is not mandatory to explain away dark energy with a Lemaitre - Tolman model
• Szekeres Swiss-Cheese model and supernova observations
• Local Void vs Dark Energy: Confrontation with WMAP and Type Ia Supernovae
• Interpretation of the Hubble diagram in a nonhomogeneous universe
• Cosmographic reconstruction of $f(\mathcal{T})$ cosmology
• 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
• Updated constraints on $f(\mathcal{R})$ gravity from cosmography
• Distinguishing Between Void Models and Dark Energy with Cosmic Parallax and Redshift Drift
• Can a supervoid explain the Cold Spot?
• A new stochastic approach to cumulative weak lensing
• Reconciling the local void with the CMB
• Testing the Copernican Principle via Cosmological Observations
• Redshift Drift in LTB Void Universes
• Can all cosmological observations be accurately interpreted with a unique geometry?
• Accurate Modeling of Weak Lensing with the sGL Method
• Swiss Cheese and a Cheesy CMB
• Pressure gradients, shell crossing singularities and acoustic oscillations - application to inhomogeneous cosmological models
• Observational constraints on the LLTB model
• How does the cosmic large-scale structure bias the Hubble diagram?
• Supervoids in the WISE-2MASS catalogue imprinting Cold Spots in the Cosmic Microwave Background
• Apparent and average acceleration of the Universe
• Errors in Estimating Omega_Lambda due to the Fluid Approximation
• On light propagation in Swiss-Cheese cosmologies
• Redshift and distances in a ΛCDM cosmology with non-linear inhomogeneities
• Description of our cosmological spacetime as a perturbed conformal Newtonian metric and implications for the backreaction proposal for the accelerating universe
• Conformally Friedmann-Lemaitre-Robertson-Walker cosmologies
• Complete solutions to the metric of spherically collapsing dust in an expanding spacetime with a cosmological constant
• Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land
• Swiss-cheese models and the Dyer-Roeder approximation
• Cosmology Without Averaging
• Rendering Dark Energy Void
• Hubble Diagram Dispersion From Large-Scale Structure
• LTB solutions in Newtonian gauge: from strong to weak fields
• CMB observations in LTB universes: Part I: Matching peak positions in the CMB spectrum
• Exact spherically-symmetric inhomogeneous model with n perfect fluids
• Averaging Robertson-Walker Cosmologies
• Perceiving the equation of state of Dark Energy while living in a Cold Spot
• The Copernican principle in light of the latest cosmological data
• Evidence for an environment-dependent shift in the baryon acoustic oscillation peak
• Light propagation in Swiss cheese models of random close-packed Szekeres structures: Effects of anisotropy and comparisons with perturbative results
• Light propagation in inhomogeneous and anisotropic cosmologies
• Backreaction in Cosmology
• Redshift drift in axially symmetric quasi-spherical Szekeres models
• Euclid: Forecast constraints on consistency tests of the $\Lambda$CDM model
• Is dark energy an effect of averaging?
• Evolving black holes from conformal transformations of static solutions
• Analytical Estimate of the Effect of Spherical Inhomogeneities on Luminosity Distance and Redshift
• Studying the precision of ray tracing techniques with Szekeres models
• Methods for studying the accuracy of light propagation in N-body simulations
• Cosmic age test in inhomogeneous cosmological models mimicking $\Lambda$CDM on the light cone
• Towards statistically homogeneous and isotropic perfect fluid universes with cosmic backreaction
• The Metric of the Cosmos from Luminosity and Age Data
• Ray tracing and Hubble diagrams in post-Newtonian cosmology
• Effect of inhomogeneities on high precision measurements of cosmological distances
• The Cold Spot as a Large Void: Rees-Sciama effect on CMB Power Spectrum and Bispectrum
• The theory of stochastic cosmological lensing
• Some clarifications about Lemaître-Tolman models of the Universe used to deal with the dark energy problem
• The Averaging Problem in Cosmology
• Evidence for the Fifth Element Astrophysical status of Dark Energy
• A solution of the dark energy and its coincidence problem based on local antigravity sources without fine-tuning or new scales
• Generalized Swiss-cheese cosmologies: Mass scales
• Luminosity distance in Swiss cheese cosmology with randomized voids. II. Magnification probability distributions
• Testing Lambda and the Limits of Cosmography with the Union2.1 Supernova Compilation
• The effect of pressure gradients on luminosity distance - redshift relations
• The Lindquist-Wheeler formulation of lattice universes
• Theoretical and numerical perspectives on cosmic distance averages
• Regge calculus models of closed lattice universes
• Cosmic backreaction and the mean redshift drift from symbolic regression
• Luminosity distance in Swiss cheese cosmology with randomized voids and galaxy halos
• On the relationship between mean observations, spatial averages and the Dyer-Roeder approximation in Einstein-Straus models
• CMB seen through random Swiss Cheese
• Discriminating different models of luminosity-redshift distribution
• Halo abundances and shear in void models
• Spatial averaging and apparent acceleration in inhomogeneous spaces
• Gif Lectures on Cosmic Acceleration
• Plane-mirroring anomaly in the cosmic microwave background maps
• Dynamics of Void and its Shape in Redshift Space
• The CMB cold spot under the lens: ruling out a supervoid interpretation
• Reconciling a decelerating Universe with cosmological observations
• Averaged Lemaître-Tolman-Bondi dynamics
• Lensing effects in inhomogeneous cosmological models
• Accelerating the Universe with Gravitational Waves
• Hubble Diagrams in Statistically Homogeneous, Anisotropic Universes
• Einstein clusters as models of inhomogeneous spacetimes
• Newton gauge cosmological perturbations for static spherically symmetric modifications of the de Sitter metric
• Gravitational backreaction in cosmological spacetimes
• Cosmic Acceleration from Causal Backreaction in a Smoothly Inhomogeneous Universe
• Post-Newtonian Gravity in Cosmology
• Cosmic Acceleration and a New Concordance from Causal Backreaction
• Perturbed Newtonian description of the Lemaître model with non-negligible pressure
• Accelerating expansion in the swisscheese model
• Second-order dust perturbations of the non-flat FLRW model with the positive cosmological constant
• Supernovae as cosmological probes
• An effective $\mathbf{\Lambda }$-Szekeres modelling of the local Universe with Cosmicflows-4