152 citations · 682 across the 13 of their papers we have counts for
13 papers
Fully relativistic treatment of light neutrinos in -body simulations
Thomas Tram, Jacob Brandbyge, Jeppe Dakin +1
Cosmological -body simulations are typically purely run with particles using Newtonian equations of motion. However, such simulations can be made fully consistent with general r…
Momentum space sampling of neutrinos in -body simulations
Jacob Brandbyge, Steen Hannestad, Thomas Tram
Including massive neutrinos in -body simulations is a challenging task due to the large thermal velocities of the neutrinos. In particle based codes this leads to problems of sh…
Cosmological N-body simulations with generic hot dark matter
Jacob Brandbyge, Steen Hannestad
We have calculated the non-linear effects of generic fermionic and bosonic hot dark matter components in cosmological N-body simulations. For sub-eV masses, the non-linear power sp…
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…
Fourier imaging of non-linear structure formation
Jacob Brandbyge, Steen Hannestad
We perform a Fourier space decomposition of the dynamics of non-linear cosmological structure formation in LCDM models. From N-body simulations involving only cold dark matter we c…
The variance of the locally measured Hubble parameter explained with different estimators
Io Odderskov, Steen Hannestad, Jacob Brandbyge
We study the expected variance of measurements of the Hubble constant, , as calculated in either linear perturbation theory or using non-linear velocity power spectra derived…