The hybrid SZ power spectrum: Combining cluster counts and SZ fluctuations to probe gas physics
arXiv:astro-ph/0402449 · doi:10.1111/j.1365-2966.2004.07989.x
Abstract
Sunyaev-Zeldovich (SZ) effect from a cosmological distribution of clusters carry information on the underlying cosmology as well as the cluster gas physics. In order to study either cosmology or clusters one needs to break the degeneracies between the two. We present a toy model showing how complementary informations from SZ power spectrum and the SZ flux counts, both obtained from upcoming SZ cluster surveys, can be used to mitigate the strong cosmological influence (especially that of sigma_8) on the SZ fluctuations. Once the strong dependence of the cluster SZ power spectrum on sigma_8 is diluted, the cluster power spectrum can be used as a tool in studying cluster gas structure and evolution. The method relies on the ability to write the Poisson contribution to the SZ power spectrum in terms the observed SZ flux counts. We test the toy model by applying the idea to simulations of SZ surveys.
arXiv comment12 pages. 11 plots. MNRAS submitted
References in corpus (42)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
- Large scale bias and the peak background split
- Halo Models of Large Scale Structure
- Mass function of dark matter halos
- An analytic model for the spatial clustering of dark matter haloes
- Cluster Abundance Constraints on Quintessence Models
- Sample Variance Considerations for Cluster Surveys
- The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
- The Most Massive Distant Clusters: Determining Omega and sigma_8
- Details of the mass--temperature relation for clusters of galaxies
- Galaxy clusters at 0.3 < z < 0.4 and the value of Ω_0
- Galaxy Cluster Abundance Evolution and Cosmological Parameters
- ROSAT PSPC observations of 36 high-luminosity clusters of galaxies: constraints on the gas fraction
- Sunyaev - Zel'dovich fluctuations from spatial correlations between clusters of galaxies
- Hydrodynamic Simulations of the Sunyaev-Zel'dovich effect(s)
- Multi-Detector Multi-Component spectral matching and applications for CMB data analysis
- Scaling laws in X-ray Galaxy Clusters at redshift between 0.4 and 1.3
- All-sky astrophysical component separation with Fast Independent Component Analysis (FastICA)
- Foregrounds and CMB Experiments: I. Semi-analytical estimates of contamination
- Importance of Cluster Structural Evolution in Using X-ray and SZE Galaxy Cluster Surveys to Study Dark Energy
- The Power Spectrum of the Sunyaev-Zel'dovich Effect
- Constraining dark energy with Sunyaev-Zel'dovich cluster surveys
- Future Galaxy Cluster Surveys: The Effect of Theory Uncertainty on Constraining Cosmological Parameters
- A maximum-entropy method for reconstructing the projected mass distribution of gravitational lenses
- Large-Scale Sunyaev-Zel'dovich Effect: Measuring Statistical Properties with Multifrequency Maps
- Sunyaev-Zeldovich effect from hydrodynamical simulations: maps and low order statistics
- Large Scale Pressure Fluctuations and Sunyaev-Zel'dovich Effect
- The impact of cooling and pre-heating on the Sunyaev-Zel'dovich effect
- The Sunyaev Zel'dovich effect: simulation and observation
- Numerical and Analytical Predictions for the Large-Scale Sunyaev-Zel'dovich Effect
- CMB power spectrum estimation and map reconstruction with the Expectation - Maximization algorithm
- Understanding Cluster Gas Evolution and Fine-Scale CMB Anisotropy with Deep Sunyaev-Zel'dovich Effect Surveys
- On Galaxy-Cluster Sizes and Temperatures
- Point sources in the context of future SZ surveys
- Deprojecting Sunyaev-Zeldovich statistics
- Constraining our Universe with X-ray & Optical Cluster Data
- Studying clusters with Planck
- The SZ effect as a cosmological discriminator
- Cosmological constraints from the cluster contribution to the power spectrum of the soft X-ray background. New evidence for a low sigma_8
- Probing the Evolution of Gas Mass Fraction with Sunyaev-Zel'dovich Effect
- S-Z Anisotropy & Cluster Counts: Consistent Selection of sigma_8 and the Temperature-Mass Relation
- CMB Comptonization in Clusters: Spectral and Angular Power from Evolving Polytropic Gas
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- Combined analysis of galaxy cluster number count, thermal Sunyaev-Zel'dovich power spectrum, and bispectrum
- On the implementation of the spherical collapse model for dark energy models
- The Sunyaev-Zeldovich Background
- Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys
- Imprints of primordial non-Gaussianities in X-ray and SZ signals from galaxy clusters
- Measuring Planck beams with planets
- The cosmological free-free signal from galaxy groups and clusters
- Cross-correlation between thermal Sunyaev-Zeldovich effect and the integrated Sachs-Wolfe effect
- Spherical collapse of dark matter haloes in tidal gravitational fields
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