Raytracing simulations of coupled dark energy models

Abstract

Dark matter and dark energy are usually assumed to couple only gravitationally. An extension to this picture is to model dark energy as a scalar field coupled directly to cold dark matter. This coupling leads to new physical effects, such as a fifth-force and a time-dependent dark matter particle mass. In this work we examine the impact that coupling has on weak lensing statistics by constructing realistic simulated weak-lensing maps using raytracing techniques through N-body cosmological simulations. We construct maps for different lensing quantities, covering a range of scales from a few arcminutes to several degrees. The concordance $\Lambda$CDM model is compared to different coupled dark energy models, described either by an exponential scalar field potential (standard coupled dark energy scenario) or by a SUGRA potential (bouncing model). We analyse several statistical quantities and our results, with sources at low redshifts are largely consistent with previous work on CMB lensing by Carbone et al., 2013. The most significant differences from the $\Lambda$CDM model are due to the enhanced growth of the perturbations and to the effective friction term in non-linear dynamics. For the most extreme models, we see differences in the power spectra up to 40% compared to the $\Lambda$CDM model. The different time evolution of the linear matter overdensity can account for most of the differences, but when controlling for this using a $\Lambda$CDM model having the same normalization, the overall signal is smaller due to the effect of the friction term appearing in the equation of motion for dark matter particles.

arXiv comment18 pages, 10 figures, accepted for publication by MNRAS

References in corpus (126)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• A Universal Density Profile from Hierarchical Clustering
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Structure of Cold Dark Matter Halos
• Planck 2013 results. XVI. Cosmological parameters
• The cosmological simulation code GADGET-2
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Particle Dark Matter: Evidence, Candidates and Constraints
• Efficient Computation of CMB anisotropies in closed FRW models
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Cosmological parameters from SDSS and WMAP
• The Case for a Positive Cosmological Lambda-term
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• Weak Gravitational Lensing
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
• Coupled Quintessence
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• The High-Z Supernova Search: Measuring Cosmic Deceleration and Global Cur vature of the Universe Using Type Ia Supernovae
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Sky Maps, Systematic Errors, and Basic Results
• Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
• The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1
• Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
• Cosmology and fundamental physics with the Euclid satellite
• Constraints on dark energy from Chandra observations of the largest relaxed galaxy clusters
• The 2dF Galaxy Redshift Survey: The power spectrum and the matter content of the universe
• First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters
• A test of the nature of cosmic acceleration using galaxy redshift distortions
• Improved constraints on dark energy from Chandra X-ray observations of the largest relaxed galaxy clusters
• Planck 2013 results. XV. CMB power spectra and likelihood
• Shapes and Shears, Stars and Smears: Optimal Measurements for Weak Lensing
• Cosmology from Maxima-1, Boomerang and COBE/DMR CMB Observations
• Cosmological Constraints from the Clustering of the Sloan Digital Sky Survey DR7 Luminous Red Galaxies
• Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys
• Cosmological Constraints from the SDSS maxBCG Cluster Catalog
• SNLS3: Constraints on Dark Energy Combining the Supernova Legacy Survey Three Year Data with Other Probes
• Very weak lensing in the CFHTLS Wide: Cosmology from cosmic shear in the linear regime
• Thick gas discs in faint dwarf galaxies
• Quintessence and Supergravity
• Evidence for the accelerated expansion of the Universe from weak lensing tomography with COSMOS
• The Observed Growth of Massive Galaxy Clusters I: Statistical Methods and Cosmological Constraints
• CFHTLenS: Combined probe cosmological model comparison using 2D weak gravitational lensing
• Consistently Large Cosmic Flows on Scales of 100 Mpc/h: a Challenge for the Standard LCDM Cosmology
• Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
• Ray Tracing Simulations of Weak Lensing by Large-Scale Structure
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Galaxy clustering and redshift-space distortions at z=0.8 in the first data release
• Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications
• The WiggleZ Dark Energy Survey: Final data release and cosmological results
• Dynamics of interacting dark energy
• Consequences of dark matter-dark energy interaction on cosmological parameters derived from SNIa data
• First cosmic shear results from the Canada-France-Hawaii Telescope Wide Synoptic Legacy Survey
• Cosmological Constraints from Sunyaev-Zel'dovich-Selected Clusters with X-ray Observations in the First 178 Square Degrees of the South Pole Telescope Survey
• Linear and non-linear perturbations in dark energy models
• Hydrodynamical N-body simulations of coupled dark energy cosmologies
• Coupled and Extended Quintessence: theoretical differences and structure formation
• Growing Matter
• Observational constraints on an interacting dark energy model
• Interacting Dark Energy -- constraints and degeneracies
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the full shape of the clustering wedges in the data release 10 and 11 galaxy samples
• Constraining Interactions in Cosmology's Dark Sector
• Evidence for dark energy from the cosmic microwave background alone using the Atacama Cosmology Telescope lensing measurements
• N-body simulations for coupled dark energy: halo mass function and density profiles
• Planck 2013 results. XIX. The integrated Sachs-Wolfe effect
• N-Body Simulations for Coupled Scalar Field Cosmology
• The Growth of Structure in Interacting Dark Energy Models
• Weak Gravitational Flexion
• Galaxy-Galaxy Flexion: Weak Lensing to Second Order
• Dark Energy Constraints from the CTIO Lensing Survey
• Time dependent couplings in the dark sector: from background evolution to nonlinear structure formation
• The Dark Universe
• Coupled dark matter-dark energy in light of near Universe observations
• Adiabatic initial conditions for perturbations in interacting dark energy models
• Observational constraints on the linear fluctuation growth rate
• Probability Distribution Functions of Cosmological Lensing: Convergence, Shear, and Magnification
• Constraint on Coupled Dark Energy Models from Observations
• Velocities as a probe of dark sector interactions
• Constraining the Evolution of Dark Energy with a Combination of Galaxy Cluster Observables
• Cosmic shear covariance: The log-normal approximation
• A comparison of the evolution of the density field in perturbation theory and numerical simulations - II Counts in cells analysis
• Lognormal Property of Weak Lensing Fields
• The CoDECS project: a publicly available suite of cosmological N-body simulations for interacting dark energy models
• Numerical study of statistical properties of the lensing excursion angles
• Observational Evidence of the Accelerated Expansion of the Universe
• Are we missing baryons in Galaxy Clusters?
• The Statistics of Weak Lensing at Small Angular Scales: Probability Distribution Function
• Revisiting the Baryon Fractions of Galaxy Clusters: A Comparison with WMAP 3-year Results
• Clarifying the effects of interacting dark energy on linear and nonlinear structure formation processes
• Weak lensing goes bananas: What flexion really measures
• Quintessence with quadratic coupling to dark matter
• The Observed Growth of Massive Galaxy Clusters III: Testing General Relativity on Cosmological Scales
• Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?
• A new stochastic approach to cumulative weak lensing
• Inferring the mass of sub-millimetre galaxies by exploiting their gravitational magnification of background galaxies
• Early massive clusters and the bouncing coupled dark energy
• Shear and Magnification: Cosmic Complementarity
• Accurate Modeling of Weak Lensing with the sGL Method
• An improved measurement of baryon acoustic oscillations from the correlation function of galaxy clusters at $z\sim 0.3$
• Improving the Accuracy of Cosmic Magnification Statistics
• Clustering and redshift-space distortions in interacting dark energy cosmologies
• Measuring Omega_0 with higher-order Quasar-Galaxy Correlations induced by Weak Lensing
• Accurate weak lensing of standard candles. I. Flexible cosmological fits
• Lensing Magnification: A novel method to weigh high-redshift clusters and its application to SpARCS
• Testing the reliability of weak lensing cluster detections
• Magnification by Galaxy Group Dark Matter Halos
• Magnification as a Probe of Dark Matter Halos at high redshift
• The halo mass function in interacting Dark Energy models
• On the Effects of Coupled Scalar Fields on Structure Formation
• Constraints on interacting dark energy models from galaxy Rotation Curves
• Maps of CMB lensing deflection from N-body simulations in Coupled Dark Energy Cosmologies
• Can Coupled Dark Energy Speed Up the Bullet Cluster?
• Combining Size and Shape in Weak Lensing
• Weak lensing predictions for coupled dark energy cosmologies at non-linear scales
• Halo model prediction of the cosmic magnification statistics: the full non-linear contribution
• Gravitational Lensing with Three-Dimensional Ray Tracing
• Oscillating nonlinear large scale structure in growing neutrino quintessence
• Analytical Predictions for Statistics of Cosmic Shear: Tests Against Simulations
• A numerical study of the effects of primordial non-Gaussianities on weak lensing statistics
• Size magnification as a complement to Cosmic Shear
• Shear-flexion cross-talk in weak-lensing measurements
• Evolution of the Cosmological Density Distribution Function: A New Analytical Model
• Twist and Turn: Weak Lensing Image Distortions to Second Order

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• Dark Matter and Dark Energy Interactions: Theoretical Challenges, Cosmological Implications and Observational Signatures
• The population of galaxy-galaxy strong lenses in forthcoming optical imaging surveys
• Cosmic voids in coupled dark energy cosmologies: the impact of halo bias
• Probing the imprint of interacting dark energy on very large scales
• Cosmological direct detection of dark energy: non-linear structure formation signatures of dark energy scattering with visible matter
• The effect of baryons in the cosmological lensing PDFs
• Simulating Momentum Exchange in the Dark Sector
• MultiDarkLens Simulations: weak lensing light-cones and data base presentation
• Strongly Coupled Dark Energy Cosmologies: preserving LCDM success and easing low scale problems II - Cosmological simulations
• Disentangling dark sector models using weak lensing statistics
• Fast Weak Lensing Simulations with Halo Model
• Dark Matter-Dark Energy Interaction and the Shape of Cosmic Voids
• Cosmic Voids in Evolving Dark Sector Cosmologies: the Low Redshift Universe
• Cosmic Voids in Evolving Dark Sector Cosmologies: the High Redshift Universe
• The CIDER simulations: Nonlinear structure formation in the Constrained Interacting Dark Energy Scenario
• Hidden from view: Coupled Dark Sector Physics and Small Scales
• The importance of the cosmic web and halo substructure for power spectra
• Qualitative probe of interacting dark energy with redshift-space distortions