Probing Dark Energy Anisotropy

Abstract

Wide area cosmological surveys enable investigation of whether dark energy properties are the same in different directions on the sky. Cosmic microwave background observations strongly restrict any dynamical effects from anisotropy, in an integrated sense. For more local constraints we compute limits from simulated distance measurements for various distributions of survey fields in a Bianchi I anisotropic universe. We then consider the effects of fitting for line of sight properties where isotropic dynamics is assumed (testing the accuracy through simulations) and compare sensitivities of observational probes for anisotropies, from astrophysical systematics as well as dark energy. We also point out some interesting features of anisotropic expansion in Bianchi I cosmology.

9 pages, 5 figures; v2 corrected equations, conclusions unchanged, matches PRD version

References in corpus (31)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic Galaxy Sample
• The axis of evil
• SNLS3: Constraints on Dark Energy Combining the Supernova Legacy Survey Three Year Data with Other Probes
• Vector Field Models of Inflation and Dark Energy
• Evidence of vorticity and shear at large angular scales in the WMAP data: a violation of cosmological isotropy?
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Analysis of potential systematics
• Increasing evidence for hemispherical power asymmetry in the five-year WMAP data
• Cosmological Limits on Slightly Skew Stresses
• Theory of cosmological perturbations in an anisotropic universe
• Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
• Ellipsoidal Universe Can Solve The CMB Quadrupole Problem
• The Impact of Inhomogeneous Reionization on Cosmic Microwave Background Anisotropy
• Anisotropic Dark Energy: Dynamics of Background and Perturbations
• A cosmic vector for dark energy
• Cuscuton Cosmology: Dark Energy meets Modified Gravity
• Anisotropic Cosmological Constant and the CMB Quadrupole Anomaly
• Testing the Isotropy of the Universe with Type Ia Supernovae
• Cosmology of a Scalar Field Coupled to Matter and an Isotropy-Violating Maxwell Field
• Vector field models of modified gravity and the dark sector
• Cosmological electromagnetic fields and dark energy
• Simple Types of Anisotropic Inflation
• Anisotropic perturbations due to dark energy
• Anisotropic dark energy and CMB anomalies
• Cosmic vector for dark energy: constraints from SN, CMB and BAO
• Constraints on the anisotropy of dark energy
• Measuring dark energy spatial inhomogeneity with supernova data
• Cosmological Perturbations in Elastic Dark Energy Models
• Constraining dark energy fluctuations with supernova correlations
• Probing Dark Energy Inhomogeneities with Supernovae
• CMB Isotropy Anomalies and the Local Kinetic Sunyaev-Zel'dovich Effect

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• Screening anisotropy via energy-momentum squared gravity: $\Lambda$CDM model with hidden anisotropy
• Percent-Level Test of Isotropic Expansion Using Type Ia Supernovae
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• Transit cosmological models with observational constraints in f(Q, T) gravity
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• Direction and redshift drifts for general observers and their applications in cosmology
• Evaluation of cosmological models in $f(R,T)$ gravity in different dark energy scenario
• Anisotropic $2$-form dark energy
• Anisotropic massive Brans-Dicke gravity extension of the standard $\Lambda$CDM model
• Non-trivial gravitational waves and structure formation phenomenology from dark energy
• Effective Einstein Cosmological Spaces for Non-Minimal Modified Gravity
• Cosmological anisotropy from non-comoving dark matter and dark energy
• Cosmological constraints from large-scale structure growth rate measurements
• Accelerating anisotropic cosmologies in Brans-Dicke gravity coupled to a mass-varying vector field
• Weak-lensing $B$-modes as a probe of the isotropy of the universe
• Observational constraints on dark energy cosmological model parameters
• Anisotropic universe with anisotropic dark energy
• Anisotropic cosmology and inflation from tilted Bianchi IX model
• A flat FRW model with dynamical $\Lambda$ as function of matter and geometry
• Structure formation in an anisotropic universe: Eulerian perturbation theory
• Warm inflation with non-comoving scalar field and radiation fluid
• Testing Local Anisotropy Using the Method of Smoothed Residuals I - Methodology
• Probing the Cosmological Principle with weak lensing shear
• Electrodynamic phenomena induced by a dark fluid: Analogs of pyromagnetic, piezoelectric, and striction effects
• Late-Time Anisotropy Sourced by a 2-Form Field Non-Minimally Coupled to Cold Dark Matter
• Einstein Spaces Modeling Nonminimal Modified Gravity
• Induced Cosmological Anisotropies and CMB Anomalies by a non-Abelian Gauge-Gravity Interaction
• Anisotropic solutions for $R^2$ gravity model with a scalar field
• Inflation and late time acceleration designed by Stueckelberg massive photon
• Induced cosmological anisotropy by a gauge-gravity interaction
• A Quantitative Framework for Testing the Hubble Tension in a Bianchi Type I Cosmological Background