323 citations · 2.1k across the 45 of their papers we have counts for
39 papers · 1 filter
Self-interacting neutrinos in cosmological perturbation theory -- integrating the collision kernel
Jakob K. Mogensen, Steen Hannestad, Thomas Tram
Cosmological constraints on self-interacting neutrinos require a Boltzmann hierarchy in which the collision term is projected onto momentum-averaged multipoles. We revisit the coll…
CLiENT: A new tool for emulating cosmological likelihoods using deep neural networks
Luca Janken, Steen Hannestad, Thomas Tram +1
Cosmological emulation of observables such as the Cosmic Microwave Background (CMB) spectra and matter power spectra have become increasingly common in recent years because of the…
Cosmic curl -- Features and convergence of the vorticity power spectrum in -body simulations
Camilla T. G. Sørensen, Steen Hannestad, Thomas Tram
Observations of the cosmic velocity field could become an important cosmological probe in the near future. To take advantage of future velocity-flow surveys we must however have th…
Calculating Bayesian evidence for inflationary models using CONNECT
Camilla T. G. Sørensen, Steen Hannestad, Andreas Nygaard +1
Bayesian evidence is a standard tool used for comparing the ability of different models to fit available data and is used extensively in cosmology. However, since the evidence calc…
Cutting corners: Hypersphere sampling as a new standard for cosmological emulators
Andreas Nygaard, Emil Brinch Holm, Steen Hannestad +1
Cosmological emulators of observables such as the Cosmic Microwave Background (CMB) spectra and matter power spectra commonly use training data sampled from a Latin hypercube. This…
PROSPECT: A profile likelihood code for frequentist cosmological parameter inference
Emil Brinch Holm, Andreas Nygaard, Jeppe Dakin +2
Cosmological parameter inference has been dominated by the Bayesian approach for the past two decades, primarily due to its computational efficiency. However, the Bayesian approach…