COSMIC MICROWAVE BACKGROUND INDUCED POLARIZATION FROM SINGLE SCATTERING BY CLUSTERS OF GALAXIES AND FILAMENTS

We present light-cone-integrated simulations of the cosmic microwave background (CMB) polarization signal induced by a single scattering in the direction of clusters of galaxies and filaments. We characterize the statistical properties of the induced polarization signals from the presence of the CMB...

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Bibliographic Details
Published in:The Astrophysical journal 2012-09, Vol.757 (1), p.1-14
Main Authors: RAMOS, Elsa P. R. G, DA SILVA, António J. C, LIU, Guo-Chin
Format: Article
Language:English
Subjects:
ANGULAR DISTRIBUTION
ASTRONOMY
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BACKGROUND RADIATION
Cosmic microwave background
Earth, ocean, space
ENERGY SPECTRA
Exact sciences and technology
Filaments
Galactic clusters
Galaxies
GALAXY CLUSTERS
GAUSS FUNCTION
GHZ RANGE
HYDRODYNAMICS
LIGHT CONE
MULTIPOLES
POLARIZATION
Quadrupoles
RED SHIFT
RELICT RADIATION
SCATTERING
Simulation
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Summary:We present light-cone-integrated simulations of the cosmic microwave background (CMB) polarization signal induced by a single scattering in the direction of clusters of galaxies and filaments. We characterize the statistical properties of the induced polarization signals from the presence of the CMB quadrupole component (pqiCMB) and as the result of the transverse motion of ionized gas clouds with respect to the CMB rest frame (p[beta] super(2)lSZ). Our simulation method involves a box-stacking scheme that allows to reconstruct the CMB quadrupole component and the gas physical properties along the line of sight. We find that the linear polarization degree in the logarithmic scale of both effects follows approximately a Gaussian distribution and the mean total signal is about 10 super(-8) and 10 super(-10) for the pqiCMB and p[beta] super(2)lSZ effects, respectively. Our results suggest that most of the contribution for the total polarization signal arises from z [lap] 4 for the pqiCMB and z [lap] 3 for p[beta] super(2)lSZ.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637x/757/1/44