323 citations · 2.1k across the 45 of their papers we have counts for
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Optimal prior for Bayesian inference in a constrained parameter space
Steen Hannestad, Thomas Tram
Bayesian parameter inference depends on a choice of prior probability distribution for the parameters in question. The prior which makes the posterior distribution maximally sensit…
General relativistic weak-field limit and Newtonian N-body simulations
Christian Fidler, Thomas Tram, Cornelius Rampf +3
We show how standard Newtonian N-body simulations can be interpreted in terms of the weak-field limit of general relativity by employing the recently developed Newtonian motion gau…
Interacting neutrinos in cosmology: exact description and constraints
Isabel M. Oldengott, Thomas Tram, Cornelius Rampf +1
We consider the impact of neutrino self-interactions described by an effective four-fermion coupling on cosmological observations. Implementing the exact Boltzmann hierarchy for in…
The effect of early radiation in N-body simulations of cosmic structure formation
Julian Adamek, Jacob Brandbyge, Christian Fidler +3
Newtonian N-body simulations have been employed successfully over the past decades for the simulation of the cosmological large-scale structure. Such simulations usually ignore rad…
Relativistic initial conditions for N-body simulations
Christian Fidler, Thomas Tram, Cornelius Rampf +3
Initial conditions for (Newtonian) cosmological N-body simulations are usually set by re-scaling the present-day power spectrum obtained from linear (relativistic) Boltzmann codes…