Mathematics – Logic
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318....1a&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 318, July 1, 1987, p. 1-14.
Mathematics
Logic
2
Astronomical Models, Background Radiation, Cosmic Dust, Cosmology, Gravitational Waves, Inhomogeneity, Mass Distribution, Plasma-Electromagnetic Interaction
Scientific paper
In this paper, the properties of a special class of inhomogeneous cosmological models and the interaction of the inhomogeneities with the evolution of the background geometry and matter are studied. The cosmological model is chosen so that the initial inhomogeneities evolve into 'plane' gravitational waves propagating through a smooth Bianchi I dust background. It is shown how the inhomogeneities interact with matter, 3 K radiation, and the background geometry, causing the expansion to slow down in some regions and speed up in others. It is also shown how the gravitational waves can produce a 'dragging of the inertial frame' which will affect the observed distribution of matter and 3 K radiation. In particular, this frame-dragging effect can account for a major fraction of the obsserved dipole component between the 3 K background radiation and the rest frame of global matter, an effect usually assumed to have been produced by large-scale local motion.
Adams Paul J.
Hellings Ronald W.
Zimmerman Robert L.
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