Inhomogeneous cosmology in an anisotropic Universe

30.06.2017 11:30 – 12:30

Modern cosmology is based on the cosmological principle – that the Universe is sufficiently homogeneous and isotropic, on large scales, to be described by a Friedmann-Lemaitre-Robertson-Walker (FLRW) model. On scales smaller than ~80 Mpc/h, however, the Universe is inhomogeneous and anisotropic. Upcoming cosmological surveys are expected to reach a precision at which general relativistic nonlinearities could affect our observations. In order to precisely quantify the general relativistic effects associated with nonlinear structures, we must use numerical relativity. I will present our work involving a realistic cosmological simulation using Einstein’s general relativity, with a view towards quantifying the effects of nonlinear structures on observational cosmology


Bâtiment: Ecole de Physique

Salle 234, 24 quai Ernest-Ansermet

Organisé par

Département de physique théorique


Hayley Macpherson, Monash University in Melbourne, Australia

entrée libre


Catégorie: Séminaire

Mots clés: dpt, Cosmology

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