Structure formation in cosmologies with oscillating dark energy

Abstract

{abridged} We study the imprints on the formation and evolution of cosmic structures of dynamical dark energy models, characterized by an oscillating equation of state. The redshift evolution of the equation of state parameter w(z) for dark energy is characterized by two parameters, describing the amplitude and the frequency of the oscillations. We consider six different oscillating dark energy models, each characterized by a different set of parameter values. Under the common assumption that dark energy is not clustering on the scales of interest, we study different aspects of cosmic structure formation. In particular, we self-consistently solve the spherical collapse problem. We then estimate the behavior of several cosmological observables, such as the linear growth factor, the Integrated Sachs-Wolfe (ISW) effect, the number counts of massive structures, and the matter and cosmic shear power spectra. We show that, independently of the amplitude and the frequency of the dark energy oscillations, none of the aforementioned observables show an oscillating behavior as a function of redshift. This is a consequence of the said observables' being integrals over some functions of the expansion rate over cosmic history. We also notice that deviations with respect to the expectations for a fiducial LambdaCDM cosmology are generically small, and in the majority of the cases distinguishing an oscillating dark energy model would be difficult. Exceptions to this conclusion are provided by the cosmic shear power spectrum, which for some of the models shows a difference at the level of \sim 10% over a wide range of angular scales, and the abundance of galaxy clusters, which is modified at the $\sim 10-20$ level at $z\gtrsim 0.6$ for future wide weak lensing surveys.

18 pages, 15 figures, published on MNRAS

References in corpus (28)

• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Disappearing cosmological constant in f(R) gravity
• Dark torsion as the cosmic speed-up
• Einstein's Other Gravity and the Acceleration of the Universe
• Conditions for the cosmological viability of f(R) dark energy models
• f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis
• Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
• Cosmic dynamics in the era of Extremely Large Telescopes
• Detection of the ISW and SZ effects from the CMB-Galaxy correlation
• Growth factor in f(T) gravity
• Growing Matter
• The WiggleZ Dark Energy Survey: measuring the cosmic expansion history using the Alcock-Paczynski test and distant supernovae
• Structure formation in the presence of dark energy perturbations
• Probing dark energy with cluster counts and cosmic shear power spectra: including the full covariance
• Dynamical and Gravitational Instability of Oscillating-Field Dark Energy and Dark Matter
• Neutrino clustering in growing neutrino quintessence
• Cosmic Jerk, Snap and Beyond
• The time evolution of cosmological redshift as a test of dark energy
• Oscillations in the dark energy EoS: new MCMC lessons
• Testing the reliability of weak lensing cluster detections
• Time drift of cosmological redshifts and its variance
• Evolution of Oscillating Scalar Fields as Dark Energy
• Model-independent determination of the cosmic expansion rate. I. Application to type-Ia supernovae
• Constraints on oscillating dark energy models
• Using Time Drift of Cosmological Redshifts to find the Mass-Energy Density of the Universe
• Signatures of the Baryon Acoustic Oscillations on the Convergence Power Spectrum of Weak lensing by Large Scale Structure
• Cosmological Constraints on the Undulant Universe

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• Omnipotent dark energy: A phenomenological answer to the Hubble tension
• Observational Constraints on Oscillating Dark-Energy Parametrizations
• Effects of shear and rotation on the spherical collapse model for clustering dark energy
• A comparison of structure formation in minimally and non-minimally coupled quintessence models
• Data-driven Reconstruction of the Late-time Cosmic Acceleration with f(T) Gravity
• A high precision semi-analytic mass function
• On the implementation of the spherical collapse model for dark energy models
• Model selection and constraints from Holographic dark energy scenarios
• Dynamical dark energy confronted with multiple CMB missions
• Dark MaGICC: the effect of Dark Energy on galaxy formation. Cosmology does matter
• Fourier-series expansion of the dark-energy equation of state
• Inevitable manifestation of wiggles in the expansion of the late Universe
• Evolution of spherical overdensities in holographic dark energy models
• Approximation of the potential in scalar field dark energy models
• Effects of ghost dark energy perturbations on the evolution of spherical overdensities
• Planar Symmetry in f(T) gravity
• Testing an oscillatory behavior of dark energy
• Growth of spherical overdensities in scalar-tensor cosmologies
• Spherical collapse model and cluster number counts in power law $f(T)$ gravity
• A short review on clustering dark energy
• Hints for possible low redshift oscillation around the best fit $\Lambda$CDM model in the expansion history of the Universe
• Growth Rate in the Dynamical Dark Energy Models
• Constraints on shear and rotation with massive galaxy clusters
• Halo collapse: virialization by shear and rotation in dynamical dark-energy models. Effects on weak-lensing peaks
• Spherical collapse model in agegraphic dark energy cosmologies
• Oscillating dark energy in light of the latest observations and its impact on the Hubble tension
• Unexplored regions in teleparallel $f(T)$ gravity: Sign-changing dark energy density
• Structure formation in dark energy cosmologies described by PADE parameterization
• Spherical collapse in Generalized Dark Matter models
• Linear matter density perturbations in the ${\Lambda }_{\mathrm{s}}$CDM model: Examining growth dynamics and addressing the $S_8$ tension
• Spherical collapse of dark matter haloes in tidal gravitational fields
• Cosmological consequences of a scalar field with oscillating equation of state. II. Oscillating scaling and chaotic accelerating solutions
• Effects of tidal gravitational fields in clustering dark energy models
• Structure formation in clustering DBI dark energy model with constant sound speed
• Cosmological consequences of a scalar field with oscillating equation of state. III. Unifying inflation with dark energy and small tensor-to-scalar ratio
• The growth of DM and DE perturbations in DBI non-canonical scalar field scenario
• Oscillating cosmological force modifies Newtonian dynamics
• Cosmological consequences of a scalar field with oscillating equation of state. IV. Primordial nucleosynthesis and the deuterium problem
• Tidal virialization of dark matter haloes with clustering dark energy
• Effect of fast scale factor fluctuations on cosmological evolution
• Constraining Recent Oscillations in Quintessence Models with Euclid
• Observational constraints on thawing quintessence scalar field model