L'optimisation de l'expérience BAO radio HIRAX

L'une des questions les plus importantes de la cosmologie contemporaine est la nature de l'énergie noire (dont la découverte était à l'origine du Prix Nobel de physique 2011). L'énergie noire s'explique-t-elle par une constante cosmologique ou par une forme d'énergie encore plus exotique ?

Preparing Dark Energy Studies with Euclid: Simulating Images

Dark energy and dark matter are the great mysteries in cosmology today. Understanding the distribution of dark matter in the Universe and obtaining strong constraints on the nature of dark energy and its possible origins are the main goals of ESA’s dark energy mission Euclid.

Contenu du stage :

Contribution à la cloudification de la plateforme de développement collaborative

L’objectif du stage :

The primary objective of cosmological research in the coming decade is to understand the accelerated expansion of the Universe.  Is it caused by a new cosmic component commonly called dark energy or a modification to General Relativity?  The abundance of galaxy clusters as a function of their mass and its evolution with redshift is a sensitive probe of the expansion rate and of structure formation.  Detecting and counting clusters is therefore an observational method probe of both dark energy and of possible modifications to General Relativity.