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Title: Inhomogeneous cosmology. II. Linearly polarized gravitational waves

Journal Article · · Astrophys. J.; (United States)
DOI:https://doi.org/10.1086/162757· OSTI ID:5772896

This is the second in a series of papers whose purpose is to investigate the possible strength of a cosmic background of gravitational radiation. In this paper we present a metric which may be used to describe exact plane gravitational waves propagating over a homogeneous background spacetime, and we find solutions representing waves of linear polarization over backgrounds of Bianchi types I, III, V, and VI, as well as over a background with a smooth global inhomogeneity. In all of these cases, we find the property that inhomogeneity in the structure of the initial cosmic singularity evolves into gravitational waves propagating over a homogeneous background spacetime.

Research Organization:
Jet Propulsion Laboratory, California Institute of Technology
OSTI ID:
5772896
Journal Information:
Astrophys. J.; (United States), Vol. 288:1
Country of Publication:
United States
Language:
English