Shear and Vorticity in an Accelerating Brans-Dicke Lambda-Universe with Torsion
arXiv:0807.1866 · doi:10.1007/s10509-008-9879-3
Abstract
We study accelerating Universes with power-law scale-factors. We include shear and vorticity, a cosmological "constant" term, and spin from torsion, as in Einstein-Cartan's theory when a scalar-field of Brans-Dicke type acts in the model. We find a "no-hair" result, for shear and vorticity; we also make contact with the alternative Machian picture of the Universe. Keywords: Cosmology; Einstein; Brans-Dicke; Cosmological term; Shear; Spin; Vorticity; Inflation; Einstein-Cartan; Torsion; Accelerating Universe
To be published by Astrophys. and Space Science
References in corpus (5)
- The Pioneer Anomaly and a Machian Universe
- A General Relativistic Rotating Evolutionary Universe - Part II
- A General Relativistic Rotating Evolutionary Universe
- Shear and Vorticity in a Combined Einstein-Cartan-Brans-Dicke Inflationary Lambda-Universe
- Shear and Vorticity in Inflationary Brans-Dicke Cosmology with Lambda-Term