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Cosmic microwave background polarization: causal formalism

Grant number: 07/02631-7
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): September 01, 2007
Effective date (End): July 31, 2009
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal Investigator:Luis Raul Weber Abramo
Grantee:Paulo Henrique Flose Reimberg
Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The polarization of the cosmic microwave background radiation (CMB) is the next frontier in observational cosmology. Data on CMB polarization is of great interest both from a cosmological viewpoint (due to its signatures of gravitational waves in the $B$ mode, as a test of dark energy, etc.) as well as from the astrophysical viewpoint (reionization, properties of galaxy clusters and of the intra-cluster media, etc.) Recently, we have shown (Abramo & Xavier, 2006) that a causal formalism in real space can be used to describe how the initial cosmological fluctuations end up generating polarization of the CMB. In this Research Project we will extend this causal formalism to include three effects that affect CMB polarization: 1) recombination, 2) reionization, and 3) weak gravitational lensing from large-scale structure.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
REIMBERG, Paulo Henrique Flose. Cosmic microwave background polarization. 2009. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.

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