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arXiv · 1101.2991

Modeling Background Radiation in Isotropic Cosmologies

P. A. Hogan·S. O'Farrell
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Abstract

Using explicit perturbations of isotropic cosmological models which describe simple gravitational waves, an isotropic tensor having the algebraic symmetries of the Bel-Robinson tensor is derived as a model of cosmic background gravitational radiation and this is used to provide an answer to the question: in what sense can an energy-momentum-stress tensor similar to that describing the cosmic microwave background radiation (neglecting anisotropies) be associated with an isotropic background of gravitational radiation?

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P. A. Hogan, S. O'Farrell. 2011-01-15. Modeling Background Radiation in Isotropic Cosmologies. https://doi.org/10.1007/s10714-011-1144-3

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