38 citations · 106 across the 7 of their papers we have counts for
7 papers
Einstein-aether models III: conformally static metrics, perfect fluid and scalar fields
Genly Leon, Alfredo Millano, Joey Latta
The asymptotic properties of conformally static metrics in Einstein-aether theory with a perfect fluid source and a scalar field are analyzed. In case of perfect fluid, some relati…
Kantowski-Sachs Einstein-æther perfect fluid models
Joey Latta, Genly Leon, Andronikos Paliathanasis
We investigate Kantowski-Sachs models in Einstein-æther theory with a perfect fluid source using the singularity analysis to prove the integrability of the field equations and dyna…
Spherically symmetric Einstein-aether perfect fluid models
Alan A. Coley, Genly Leon, Patrik Sandin +1
We investigate spherically symmetric cosmological models in Einstein-aether theory with a tilted (non-comoving) perfect fluid source. We use a 1+3 frame formalism and adopt the com…
On the physical effects of consistent cosmological averaging
Iain A. Brown, Alan A. Coley, D. Leigh Herman +1
We use cosmological perturbation theory to study the backreaction effects of a self-consistent and well-defined cosmological averaging on the dynamics and the evolution of the Univ…
Backreaction: Gauge and Frame Dependences
Iain A. Brown, Joey Latta, Alan Coley
The cosmological backreaction from perturbations is clearly gauge-dependent, and obviously depends on the choice of averaged Hubble rate. We consider two common choices of Hubble r…
Unimodular Gravity and Averaging
A. Coley, J. Brannlund, J. Latta
The question of the averaging of inhomogeneous spacetimes in cosmology is important for the correct interpretation of cosmological data. In this paper we suggest a conceptually sim…
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…