General relativistic weak-field limit and Newtonian N-body simulations
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...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 December 2017
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| In: |
Journal of cosmology and astroparticle physics
Year: 2017, Heft: 12, Pages: 1-22 |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2017/12/022 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1088/1475-7516/2017/12/022 Verlag, Volltext: http://stacks.iop.org/1475-7516/2017/i=12/a=022 
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| Verfasserangaben: | Christian Fidler, Thomas Tram, Cornelius Rampf, Robert Crittenden, Kazuya Koyama and David Wands |
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| 520 | |a 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. | ||
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