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GR: Fachverband Gravitation und Relativitätstheorie

GR 4: Cosmology II

GR 4.1: Vortrag

Dienstag, 19. März 2019, 14:00–14:15, HS 4

Relativistic effects in N-body simulations of cosmic large-scale structure — •Julian Adamek¹, Chris Clarkson¹, Louis Coates¹, Ruth Durrer², and Martin Kunz² — ¹Queen Mary University of London, UK — ²Université de Genève, CH

As our advanced telescopes produce ever larger and deeper maps of our Universe we need to consider that observations are taken on our past light cone and on a spacetime geometry that is pervaded by small distortions. A precise understanding of the weak-field regime of General Relativity allows one to model these aspects consistently within N-body simulations of cosmic structure formation. The subtle relativistic effects in cosmic structure can tell us how gravity operates on the largest scales that we observe and may hold the key to unravelling the mystery of dark energy.