| Автор | Alan A Coley |
| Автор | Des J McManus |
| Дата выпуска | 1994-05-01 |
| dc.description | A comprehensive analysis of general relativistic spacetimes which admit a shear-free, irrotational and geodesic time-like congruence is presented. The equations governing the models for a general energy--momentum tensor are written down. Coordinates in which the metric of such spacetimes takes on a simplified form are established. The general subcases of `zero anisotropic stress', `zero heat-flux vector' and `two-component fluids' are investigated. In particular, perfect-fluid Friedmann--Robertson--Walker models and spatially homogeneous models are discussed. Models with a variety of physically relevant energy--momentum tensors are considered. Anisotropic fluid models and viscous fluid models with heat conduction are examined. Also, models with a perfect fluid plus a magnetic field or with pure radiation, and models with two non-collinear perfect fluids (satisfying a variety of physical conditions) are investigated. In particular, models with a (single) perfect fluid which is tilting with respect to the shear-free, vorticity-free and acceleration-free time-like congruence are discussed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On spacetimes admitting shear-free, irrotational, geodesic time-like congruences |
| Тип | paper |
| DOI | 10.1088/0264-9381/11/5/013 |
| Electronic ISSN | 1361-6382 |
| Print ISSN | 0264-9381 |
| Журнал | Classical and Quantum Gravity |
| Том | 11 |
| Первая страница | 1261 |
| Последняя страница | 1282 |
| Аффилиация | Alan A Coley; Department of Mathematics, Statistics and Computing Science, Dalhousie University, Halifax, NS, Canada B3H 3J5 |
| Аффилиация | Des J McManus; Department of Mathematics, Statistics and Computing Science, Dalhousie University, Halifax, NS, Canada B3H 3J5 |
| Выпуск | 5 |
