Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-01-27
Phys.Rev. D69 (2004) 064038
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
29 pages, Latex file, accepted for publication in Physical Review D
Scientific paper
10.1103/PhysRevD.69.064038
Gravitational waves in isotropic cosmologies were recently studied using the
gauge-invariant approach of Ellis-Bruni. We now construct the linearised metric
perturbations of the background Robertson-Walker space-time which reproduce the
results obtained in that study. The analysis carried out here also facilitates
an easy comparison with Bardeen.
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