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Properties of voids and modified gravity

Grant number: 14/15377-5
Support type:Scholarships in Brazil - Master
Effective date (Start): October 01, 2014
Effective date (End): September 30, 2016
Field of knowledge:Physical Sciences and Mathematics - Astronomy
Principal Investigator:Marcos Vinicius Borges Teixeira Lima
Grantee:Rodrigo Voivodic
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

In this project we study the detection and use of the cosmological voids, i.e. large voids low density regions in the universe. The main focus will be the study, implementation and improvement of specific detectors, as well as the study of how the properties of voids, e.g. abundance and density profile, can be used to bind cosmological parameters, in particular those related to models of modified gravity with local shielding mechanism. We will also have a theoretical study and detailed numrical implementations of different models of modified gravity, focusing on theoretical and observational access viability of these models in current and future experiments. (AU)