Probing the largest scale structure in the universe with polarization map of galaxy clusters

Abstract

We introduce a new formalism to describe the polarization signal of galaxy clusters on the whole sky. We show that a sparsely sampled, half-sky map of the cluster polarization signal at $z\sim 1$ would allow to better characterize the very large scale density fluctuations. While the horizon length is smaller in the past, two other competing effects significantly remove the contribution of the small scale fluctuations from the quadrupole polarization pattern at $z\sim 1$. For the standard Lambda-CDM universe with vanishing tensor mode, the quadrupole moment of the temperature anisotropy probed by WMAP is expected to have a ~32% contribution from fluctuations on scales below 6.3h^{-1}Gpc. This percentage would be reduced to ~2% level for the quadrupole moment of polarization pattern at $z\sim 1$. A cluster polarization map at $z\sim 1$ would shed light on the potentially anomalous features of the largest scale structure in the observable universe.

5 pages, 2 figures, revised version, to appear in PRL

References in corpus (14)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• A high resolution foreground cleaned CMB map from WMAP
• The significance of the largest scale CMB fluctuations in WMAP
• Suppressing the lower Multipoles in the CMB Anisotropies
• Constraining the Topology of the Universe
• Weak lensing analysis in three dimensions
• The Statistical Significance of the Low CMB Mulitipoles
• Bayesian Power Spectrum Analysis of the First-Year WMAP data
• Growth Rate of Large Scale Structure as a Powerful Probe of Dark Energy
• Analysis of the Kamionkowski-Loeb method of reducing cosmic variance with CMB polarization
• The CMB Quadrupole in a Polarized Light
• CMB-induced Cluster Polarization as a Cosmological Probe
• Sunyaev Zel'dovich polarization simulation

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• Kinetic Sunyaev Zeldovich effect in an anisotropic CMB model: measuring low multipoles of the CMB at higher redshifts using intensity and polarization spectral distortions
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• Towards testing CMB anomalies using the kinetic and polarized Sunyaev Zel'dovich effects
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• Testing the Origin of the CMB Large-Angle Correlation Deficit with a Galaxy Imaging Survey
• Cosmology with Galaxy Correlations
• Novel Cosmological Tests from Combining Galaxy Lensing and the Polarized Sunyaev-Zel'dovich Effect
• Measuring the cosmological density field twice: A novel test of dark energy using the CMB quadrupole
• Validating dark energy models using polarised Sunyaev-Zel'dovich effect with large-angle CMB temperature and E-mode polarization anisotropies
• Circumventing Cosmic Variance via Remote Quadrupole Measurements