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Cosmic microwave background polarization due to galaxy clusters

Grant number: 05/01026-7
Support type:Scholarships in Brazil - Master
Effective date (Start): September 01, 2005
Effective date (End): August 31, 2007
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal researcher:Luis Raul Weber Abramo
Grantee:Henrique Scemes Xavier
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil


In this research project we will study the cosmic background radiation polarization by the Sunyaev-Zeldovich effect in galaxy clusters. We have two goals: first, we will reconstruct, at least in theory, the tridimensional spectrum of the cosmological perturbations from the background radiation polarization in clusters; second, we will study the temporal evolution of the background radiation quadrupole through the analysis of the polarization in clusters in various redshifts. We want to find out up to what point would be possible to reduce the cosmic variance on background radiation low multipoles, and how accurate can we estimate the Integrated Sachs-Wolfe effect using these data.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
XAVIER, Henrique Scemes. Tomography of the primordial gravitational potential using cosmic microwave background polarization in galaxy clusters. 2007. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.

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