The CoDECS project: a publicly available suite of cosmological N-body simulations for interacting dark energy models

Abstract

We present the largest set of N-body and hydrodynamical simulations to date for cosmological models featuring a direct interaction between the Dark Energy (DE) scalar field, responsible of the observed cosmic acceleration, and the Cold Dark Matter (CDM) fluid. With respect to previous works, our simulations considerably extend the statistical significance of the simulated volume and cover a wider range of different realizations of the interacting DE scenario, including the recently proposed bouncing coupled DE model. Furthermore, all the simulations are normalized in order to be consistent with the present bounds on the amplitude of density perturbations at last scattering, thereby providing the first realistic determination of the effects of a DE coupling for cosmological growth histories fully compatible with the latest Cosmic Microwave Background data. As a first basic analysis, we have studied the impact of the coupling on the nonlinear matter power spectrum and on the bias between the CDM and baryon distributions, as a function of redshift and scale. For the former, we have addressed the issue of the degeneracy between the effects of the coupling and other standard cosmological parameters, as e.g sigma_8, showing how the redshift evolution of the linear amplitude or the scale dependence of the nonlinear power spectrum might provide a way to break the degeneracy. For the latter, instead, we have computed the redshift and scale dependence of the bias in all our different models showing how a growing coupling or a bouncing coupled DE scenario provide much stronger effects with respect to constant coupling models. We refer to this vast numerical initiative as the COupled Dark Energy Cosmological Simulations project, or CoDECS, and we hereby release all the CoDECS outputs for public use through a dedicated web database, providing information on how to access and interpret the data.

18 pages, 3 Tables, 8 Figures. Sections on the Halo and Subhalo Mass Functions added. Revision matches the version accepted for publication in MNRAS. Simulations publicly available at http://www.marcobaldi.it/research/CoDECS

References in corpus (24)

• Cosmology and the Fate of Dilatation Symmetry
• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• A unified model for AGN feedback in cosmological simulations of structure formation
• Dynamics of interacting dark energy
• Non-linear Evolution of f(R) Cosmologies III: Halo Statistics
• Non-linear evolution of f(R) cosmologies II: power spectrum
• N-body Simulations for f(R) Gravity using a Self-adaptive Particle-Mesh Code
• The velocity function in the local environment from LCDM and LWDM constrained simulations
• X-ray and Sunyaev-Zel'dovich Effect Measurements of the Gas Mass Fraction in Galaxy Clusters
• Coupled and Extended Quintessence: theoretical differences and structure formation
• Growing Matter
• Non-linear evolution of f(R) cosmologies I: methodology
• Metal and molecule cooling in simulations of structure formation
• Metal and molecule cooling in simulations of structure formation
• Coupled dark matter-dark energy in light of near Universe observations
• Observational constraints on the linear fluctuation growth rate
• Accurate estimators of power spectra in N-body simulations
• A New Force in the Dark Sector?
• Revisiting the Baryon Fractions of Galaxy Clusters: A Comparison with WMAP 3-year Results
• Mass functions in coupled Dark Energy models
• XMM-LSS discovery of a z=1.22 galaxy cluster
• Hydrodynamic simulations on a moving Voronoi mesh
• The Misalignments between Matter and Galaxy Distributions in Triaxial Clusters: A Signature of a Possible Fifth Force?

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