128 citations · 875 across the 38 of their papers we have counts for
4 papers · 1 filter
Null geodesics and observational cosmology
A. A. Coley
The Universe is not isotropic or spatially homogeneous on local scales. The averaging of local inhomogeneities in general relativity can lead to significant dynamical effects on th…
Averaging Spherically Symmetric Spacetimes in General Relativity
A. A. Coley, N. Pelavas
We discuss the averaging problem in general relativity, using the form of the macroscopic gravity equations in the case of spherical symmetry in volume preserving coordinates. In p…
The Dynamics of Brane-World Cosmological Models
A. A. Coley
Brane-world cosmology is motivated by recent developments in string/M-theory and offers a new perspective on the hierarchy problem. In the brane-world scenario, our Universe is a f…
The Phantom of the OPRA
A. Coley, S. Hervik, J. Latta
The Observed Perlmutter-Riess Acceleration (OPRA) implies that the expansion of the Universe is currently increasing and is motivation for the so-called phantom energy models. We c…