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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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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 16 October 2021

Inhomogeneous aspects of cosmology

Inhomogeneous aspects of cosmology

(p.56) 4 Inhomogeneous aspects of cosmology
Advanced General Relativity
Oxford University Press

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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