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Calibration of the mass-richness relation for galaxy clusters with weak-gravitational lensing

Grant number: 19/13581-8
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2019
Effective date (End): August 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal Investigator:Eduardo Serra Cypriano
Grantee:Alexandre Henriques da Silva
Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil


This IC project focus on the use of weak-lensing techniques for the determination of the mass-richness relation of galaxy clusters using the CS82 survey data. This is a crucial step towards the determination of cosmological parameters through galaxy clusters count. Recently this kind of calibration has been done by the use of the stacking of the lensing signal of multiple systems in bins of richness. In this project we intend to start the development of a method that precluded the binning, the simultaneous fit of all systems.

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