Cosmic microwave background polarization due to galaxy clusters

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

Abstract

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.

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.