Inhomogeneous cosmology: Gravitational radiation in Bianchi backgrounds

Journal Article · Mon Feb 01 00:00:00 EST 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/159604· OSTI ID:5234137

Adams, P J; Hellings, R W; Zimmerman, R L; Farhoosh, H; Levine, D I; Zeldich, S

An exact formalism is developed for describing cosmological models with strong, long wavelength gravitational waves of general polarization propagating over backgrounds corresponding to Bianchi types I through VII. We introduce and discuss a new metric which exhibits the appropriate symmetries of two equivalent independent polarizations of gravitational waves. The formalism is applied to an empty type I cosmology, and it is shown how the original z-dependent chaotic singularity structure transforms itself into gravitational radiation propagating along the z-axis in a Bianchi I background.

• Research Organization: Physics Department, Washington State University, Pullman
• OSTI ID: 5234137
• Journal Information: Astrophys. J.; (United States), Vol. 253:1
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGY
GRAVITATIONAL RADIATION
COSMOLOGICAL MODELS
EINSTEIN FIELD EQUATIONS
GRAVITATIONAL WAVES
METRICS
POLARIZATION
WAVE PROPAGATION
EQUATIONS
FIELD EQUATIONS
MATHEMATICAL MODELS
RADIATIONS
640106* - Astrophysics & Cosmology- Cosmology