A new method for the fast generation of halo catalogues in modified gravity
| Grant number: | 15/01721-9 |
| Support type: | Scholarships in Brazil - Post-Doctorate |
| Effective date (Start): | December 01, 2015 |
| Effective date (End): | January 31, 2020 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics |
| Principal Investigator: | Marcos Vinicius Borges Teixeira Lima |
| Grantee: | Eder Leonardo Duarte Perico |
| Home Institution: | Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| Associated scholarship(s): | 18/11867-9 - Voids as a probe of modified gravity, BE.EP.PD |
Abstract We are interested in testing alternative gravitational theories, modified on cosmological scales.We will analyze n-body cosmological simulations in order to obtain complementary observables such as dark matter halo and void abundances as a function of its mass and red-shift.We will use this complementary observables, in particular the void abundance, in order to constrain the cosmological sector that drive the current accelerated stage (cosmological constant or modified gravity with chameleon effect).On the other hand, in order to test the vality of the Vlasov equation during the formation of halos, we will follow up the evolution of its entropy and phase-space mixing level in cosmological simulations.This will allow us to enhance the physical implementation of the incomplete violent relaxation mechanism in halo formation process, in order to improve the current virialized halo profile predictions | |