4 papers
Tilting the scales: weighing prior dependency and global tensions of CMB lensing
A. N. Ormondroyd, W. J. Handley, M. P. Hobson +1
We provide a nested sampling analysis of the combination of CMB lensing experiments with other cosmological measurements. Nested samples can be used to compute global consistency s…
Dynamic or Systematic? Bayesian model selection between dark energy and supernova biases
A. N. Ormondroyd, W. J. Handley, M. P. Hobson +2
The Dark Energy Survey 5-year (DES-5Y) supernovae, combined with Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillations, appear to favour Chevallier-Polarski-Lind…
Comparison of dynamical dark energy with ÎCDM in light of DESI DR2
A. N. Ormondroyd, W. J. Handley, M. P. Hobson +1
We present an updated reconstruction of the dark energy equation of state, , using the newly released DESI DR2 Baryon Acoustic Oscillation (BAO) data in combination with Pant…
Nonparametric reconstructions of dynamical dark energy via flexknots
A. N. Ormondroyd, W. J. Handley, M. P. Hobson +1
Recent cosmological surveys have provided unprecedented datasets that can be used to reconstruct the history of the dark energy equation of state. In this work, a free-form "flexkn…