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Advanced General RelativityGravity Waves, Spinning Particles, and Black Holes$
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Claude Barrabès and Peter A. Hogan

Print publication date: 2013

Print ISBN-13: 9780199680696

Published to Oxford Scholarship Online: September 2013

DOI: 10.1093/acprof:oso/9780199680696.001.0001

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Inhomogeneous aspects of cosmology

Inhomogeneous aspects of cosmology

Chapter:
(p.56) 4 Inhomogeneous aspects of cosmology
Source:
Advanced General Relativity
Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199680696.003.0004

Inhomogeneities are introduced into isotropic cosmologies in the form of gravitational waves. Plane gravitational waves are introduced exactly into the de Sitter universe via a geometrical construction of the Ozsváth–Robinson–Rózga solution of the vacuum field equations with a cosmological constant. Gravitational waves propagating in the isotropic Robertson–Walker universes are described by small perturbations of these universes using gauge-invariant and covariant perturbation theory. These waves are used to construct a model of cosmic background gravitational radiation.

Keywords:   inhomogeneities, de Sitter universe, Robertson–Walker universes, perturbations, gravitational waves

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