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- Title
Modelling background radiation in isotropic cosmologies.
- Authors
Hogan, P. A.; O'Farrell, S.
- 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?
- Subjects
RADIATION; ELECTROMAGNETISM; GRAVITATIONAL waves; ASTRONOMICAL perturbation; ALGEBRA
- Publication
General Relativity & Gravitation, 2011, Vol 43, Issue 6, p1625
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-011-1144-3