Dark energy parameterizations and their effect on dark halos

Abstract

There is a plethora of dark energy parameterizations that can fit current supernovae Ia data. However, this data is only sensitive to redshifts up to order one. In fact, many of these parameterizations break down at higher redshifts. In this paper we study the effect of dark energy models on the formation of dark halos. We select a couple of dark energy parameterizations which are sensible at high redshifts and compute their effect on the evolution of density perturbations in the linear and non-linear regimes. Using the Press-Schechter formalism we show that they produce distinguishable signatures in the number counts of dark halos. Therefore, future observations of galaxy clusters can provide complementary constraints on the behavior of dark energy.

17 pages, 15 figures

References in corpus (39)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• 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
• Accelerating Universes with Scaling Dark Matter
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• The 3D power spectrum of galaxies from the SDSS
• Mass function of dark matter halos
• Statefinder -- a new geometrical diagnostic of dark energy
• New Constraints on ${\Omega }_M$, ${\Omega }_{\Lambda }$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Cosmology with the Sunyaev-Zel'dovich Effect
• Cluster Abundance Constraints on Quintessence Models
• Exploring the Expanding Universe and Dark Energy using the Statefinder Diagnostic
• Merger rates in hierarchical models of galaxy formation. II: Comparison with N-body simulations
• Probing the dark energy: methods and strategies
• Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys
• WMAP constraints on low redshift evolution of dark energy
• The Cluster Abundance in Flat and Open Cosmologies
• Future Supernovae observations as a probe of dark energy
• Cosmic Structure Growth and Dark Energy
• On the spherical collapse model in dark energy cosmologies
• Phenomenological parameterization of quintessence
• Dynamical Lambda Models of Structure Formation
• The Mass Power Spectrum in Quintessence Cosmological Models
• Exploring Cosmological Expansion Parametrizations with the Gold SnIa Dataset
• Structure Formation in Inhomogeneous Dark Energy Models
• Cosmological structure formation in a homogeneous dark energy background
• Measuring Dark Energy Clustering with CMB-Galaxy Correlations
• Dark energy and the evolution of spherical overdensities
• Non-linear Structure Formation in Cosmologies with Early Dark Energy
• Constraints on the dark energy equation of state from recent supernova data
• Numerical Approach to Multi Dimensional Phase Transitions
• Number counts in homogeneous and inhomogeneous dark energy models
• Non linear predictions from linear theories in models with Dark Energy
• Dynamical quintessence fields Press-Schechter mass function: detectability and effect on dark haloes
• Parametrization of Dark Energy Equation of State

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• Structure formation in the presence of dark energy perturbations
• Physical approximations for the nonlinear evolution of perturbations in dark energy scenarios
• Confronting Dark Energy Models using Galaxy Cluster Number Counts
• The spherical collapse model and cluster formation beyond the $\Lambda$ cosmology: Indications for a clustered dark energy?
• Growth of Perturbations in Tsallis and Barrow Cosmology
• Dynamical Mutation of Dark Energy
• The signature of dark energy perturbations in galaxy cluster surveys
• Probing Dark Energy at Galactic and Cluster Scales
• Combining cluster number counts and galaxy clustering
• Testing flatness of the universe with probes of cosmic distances and growth
• A short review on clustering dark energy
• Dynamics and Constraints of the Massive Gravitons Dark Matter Flat Cosmologies
• Dynamics and constraints of the dissipative Liouville cosmology
• Structure formation in mimetic gravity
• Linear matter density perturbations in the ${\Lambda }_{\mathrm{s}}$CDM model: Examining growth dynamics and addressing the $S_8$ tension
• Evolution of Spherical Overdensities in Energy-Momentum-Squared Gravity
• Effects of Rastall parameter on perturbation of dark sectors of the Universe
• Is the CMB shift parameter connected with the growth of cosmological perturbations?
• Constraining Thawing Dark Energy using Galaxy Cluster Number Counts
• Sensitivity and Insensitivity of Galaxy Cluster Surveys to New Physics
• Linear and nonlinear clusterings of Horndeski-inspired dark energy models with fast transition
• Quinstant Dark Energy Predictions for Structure Formation