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31 papers · 2 filters
Constraining interacting dark energy models with the halo concentration-mass relation
Yu Zhao, Yun Liu, Shihong Liao +3
The interacting dark energy (IDE) model is a promising alternative cosmological model which has the potential to solve the fine-tuning and coincidence problems by considering the i…
Palatini formulation for gauge theory: implications for slow-roll inflation
Syksy Rasanen, Yosef Verbin
We consider a formulation of gauge field theory where the gauge field and the field strength are independent variables, as in the Palatini formulation of gravity. Fo…
Multi-messenger constraints on Abelian-Higgs cosmic string networks
Mark Hindmarsh, Jun'ya Kume
Nielsen-Olesen vortices in the Abelian-Higgs (AH) model are the simplest realisations of cosmic strings in a gauge field theory. Large-scale numerical solutions show that the domin…
Baryonic Effects on Lagrangian Clustering and Angular Momentum Reconstruction
Ming-Jie Sheng, Hao-Ran Yu, Sijia Li +7
Recent studies illustrate the correlation between the angular momenta of cosmic structures and their Lagrangian properties. However, only baryons are observable and it is unclear w…
Reconstructing physical parameters from template gravitational wave spectra at LISA: first order phase transitions
Chloe Gowling, Mark Hindmarsh, Deanna C. Hooper +1
A gravitational wave background from a first order phase transition in the early universe may be observable at millihertz gravitational wave (GW) detectors such as the Laser Interf…
BeyondPlanck IV. On end-to-end simulations in CMB analysis -- Bayesian versus frequentist statistics
M. Brilenkov, K. S. F. Fornazier, L. T. Hergt +48
End-to-end simulations play a key role in the analysis of any high-sensitivity CMB experiment, providing high-fidelity systematic error propagation capabilities unmatched by any ot…