Impact of early dark energy on the Planck SZ cluster sample
arXiv:0804.2815 · doi:10.1051/0004-6361:200809990
Abstract
Context. One science goal of the upcoming Planck mission is to perform a full-sky cluster survey based on the Sunyaev-Zel'dovich (SZ) effect, which leads to the question of how such a survey would be affected by cosmological models with a different history of structure formation than LCDM. One class of these models are early dark energy (EDE) cosmologies, where the dark energy contribution does not vanish at early times. Aims. Since structures grow slower in the presence of EDE, one expects an increase in the number of galaxy clusters compared to LCDM at intermediate and high redshifts, which could explain the reported excess of the angular CMB power spectrum on cluster scales via an enhanced SZ contribution. We study the impact of EDE on Planck's expected cluster sample. Methods. To obtain realistic simulations, we constructed full-sky SZ maps for EDE and LCDM cosmologies, taking angular cluster correlation into account. Using these maps, we simulated Planck observations with and without Galactic foregrounds and fed the results into our filter pipeline based on the spherical multi-frequency matched filters. Results. For the case of EDE cosmologies, we clearly find an increase in the detected number of clusters compared to the fiducial LCDM case. This shows that the spherical multi-frequency matched filter is sensitive enough to find deviations from the LCDM sample, being caused by EDE. In addition we find an interesting effect of EDE on the completeness of the cluster sample, such that EDE helps to obtain cleaner samples.
arXiv comment12 pages, 10 figures, accepted for publication in A&A, minor language corrections. Notable changes include an added subsection on collapse parameters for EDE models and a discussion of the consequent SZ power spectra
References in corpus (45)
- Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
- HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
- Cosmological Imprint of an Energy Component with General Equation of State
- Cosmology and the Fate of Dilatation Symmetry
- Halo Models of Large Scale Structure
- An analytic model for the spatial clustering of dark matter haloes
- Cluster Abundance Constraints on Quintessence Models
- Extrapolation of Galactic Dust Emission at 100 Microns to CMBR Frequencies Using FIRAS
- A classification of scalar field potentials with cosmological scaling solutions
- A Full-Sky H-alpha Template for Microwave Foreground Prediction
- The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
- Extended Mosaic Observations with the Cosmic Background Imager
- Cosmic Structure Growth and Dark Energy
- On the spherical collapse model in dark energy cosmologies
- Phenomenological parameterization of quintessence
- Extragalactic Source Counts and Contributions to the Anisotropies of the Cosmic Microwave Background. Predictions for the Planck Surveyor mission
- Early Dark Energy Cosmologies
- Characterizing the Cluster Lens Population
- Detection of a Far IR Excess with DIRBE at 60 and 100 Microns
- Towards a model of full-sky Galactic synchrotron intensity and linear polarisation: a re-analysis of the Parkes data
- Filtering techniques for the detection of Sunyaev-Zel'dovich clusters in multifrequency CMB maps
- The Incidence of Strong-Lensing Clusters in the Red-Sequence Cluster Survey
- Giant Arc Statistics In Concordance With A Concordance LCDM Universe
- Dark energy and the evolution of spherical overdensities
- Non-linear Structure Formation in Cosmologies with Early Dark Energy
- Effects of cluster galaxies on arc statistics
- Structure Formation and the Time Dependence of Quintessence
- cD galaxy contribution to the strong lensing cross sections of galaxy clusters
- A tracker solution to the cold dark matter cosmic coincidence problem
- On the Incidence of Strong Gravitational Lensing by Clusters in the Las Campanas Distant Cluster Survey
- The Sunyaev-Zeldovich effect in CMB-calibrated theories applied to the Cosmic Background Imager anisotropy power at l > 2000
- A simulation pipeline for the Planck mission
- Impact of three years of data from the Wilkinson Microwave Anisotropy Probe on cosmological models with dynamical dark energy
- Optimal detection of sources on a homogeneous and isotropic background
- Large Scale Pressure Fluctuations and Sunyaev-Zel'dovich Effect
- Numerical and Analytical Predictions for the Large-Scale Sunyaev-Zel'dovich Effect
- Measurement of Arcminute Scale Anisotropy with the BIMA Array
- Noise in strong lensing cosmography
- Cluster abundances and S-Z power spectra: effects of non-Gaussianity and early dark energy
- Detecting Sunyaev-Zel'dovich clusters with PLANCK: II. Foreground components and optimised filtering schemes
- Detecting Sunyaev-Zel'dovich clusters with PLANCK: I. Construction of all-sky thermal and kinetic SZ-maps
- Effects of early dark energy on strong cluster lensing
- Detecting Sunyaev-Zel'dovich clusters with PLANCK: III. Properties of the expected SZ-cluster sample
- Observational constraints on the dark energy density evolution
- Sunyaev-Zel'dovich Cluster Survey Simulations for Planck
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- One Thousand and One Clusters: Measuring the Bulk Flow with the Planck ESZ and X-Ray Selected Galaxy Cluster Catalogs
- Galaxy Clusters as a probe of early dark energy
- Measuring Bulk Flow of Galaxy Clusters using Kinematic Sunyaev-Zel'dovich effect: Prediction for Planck
- Constraints on dark energy models from radial baryon acoustic scale measurements
- Testing model independent modified gravity with future large scale surveys
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