Inhomogeneous cosmology. III - Primordial gravitational waves and dust

Autor:	Robert L. Zimmerman, P. J. Adams, R. W. Hellings
Rok vydání:	1987
Předmět:	Physics Gravitation Inhomogeneous cosmology Inertial frame of reference Classical mechanics Space and Planetary Science Gravitational wave Cosmic background radiation Astronomy and Astrophysics Rest frame Cosmology Background radiation
Zdroj:	The Astrophysical Journal. 318:1
ISSN:	1538-4357 0004-637X
DOI:	10.1086/165348
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6cd038025cf5646e9c3ac198236c77c8 https://doi.org/10.1086/165348 Zobrazit plný text záznamu