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The evolution of clusters in the CLEF cosmological simulation: X-ray structural and scaling properties
Scott T. Kay, Antonio C. da Silva, Nabila Aghanim +5
We present results from a study of the X-ray cluster population that forms within the CLEF cosmological hydrodynamics simulation, a large N-body/SPH simulation of the Lambda CDM co…
Quintessence reconstructed: new constraints and tracker viability
Martin Sahlén, Andrew R Liddle, David Parkinson
We update and extend our previous work reconstructing the potential of a quintessence field from current observational data. We extend the cosmological dataset to include new super…
Intermediate inflation in light of the three-year WMAP observations
John D Barrow, Andrew R Liddle, Cédric Pahud
The three-year observations from the Wilkinson Microwave Anisotropy Probe have been hailed as giving the first clear indication of a spectral index n_s<1. We point out that the dat…
Present and future evidence for evolving dark energy
Andrew R Liddle, Pia Mukherjee, David Parkinson +1
We compute the Bayesian evidences for one- and two-parameter models of evolving dark energy, and compare them to the evidence for a cosmological constant, using current data from T…
Nflation: non-gaussianity in the horizon-crossing approximation
Soo A. Kim, Andrew R. Liddle
We analyze the cosmic non-gaussianity produced in inflation models with multiple uncoupled fields with monomial potentials, such as Nflation. Using the horizon-crossing approximati…
Cosmological model selection
Andrew R. Liddle, Pia Mukherjee, David Parkinson
Model selection aims to determine which theoretical models are most plausible given some data, without necessarily asking about the preferred values of the model parameters. A comm…