Thématique : Cosmologie observationnelle
In the era of stage IV experiments the sky will be more revealing than ever. The main pillars of modern cosmology is the Cosmological Principle and the theory General of Relativity, our best description of gravity, to date. The best phenomenological model is named ?CDM where ? stands for the unknown Dark Energy component of the Universe responsible for the primordial and late time acceleration of the Universe, while CDM stands for Cold Dark Matter, which is another unknown component that fills, up to 80% of the total matter of the universe to date, 2019. In order to test this theory, we take advantage of the primordial plasma that produced Baryon Acoustic Oscillations in the early universe. These oscillations evolved in time and they are still imprinted on the large scale structures in the late universe.
This projects has two aims. The first aim is to deepen the understanding of the student on cosmological models. The second aim is to give the student the necessary skills in observational cosmology and large scale structure surveys.
Cosmological implications of baryon acoustic oscillation (BAO) measurements, E. Aubourg et al 2015, arXiv:1411.1074
SLOAN DIGITAL SKY SURVEY IV: MAPPING THE MILKY WAY, NEARBY GALAXIES, AND THE DISTANT UNIVERSE, Blanton et al 2017, arXiv:1703.00052