http://arxiv.org/abs/1708.07769
We show how standard Newtonian N-body simulations can be interpreted in terms of the weak-field limit of general relativity by employing the recently developed Newtonian motion gauge. Our framework allows the inclusion of radiation perturbations and the non-linear evolution of matter. We show how to construct the weak-field metric by combining Newtonian simulations with results from Einstein-Boltzmann codes. We discuss observational effects on weak lensing and ray tracing, identifying important relativistic corrections.
C. Fidler, T. Tram, C. Rampf, et. al.
Mon, 28 Aug 17
15/46
Comments: 22 pages, 3 figures
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