81 citations · 162 across the 5 of their papers we have counts for
5 papers
Cosmological -body simulations including radiation perturbations
Jacob Brandbyge, Cornelius Rampf, Thomas Tram +3
Cosmological -body simulations are the standard tool to study the emergence of the observed large-scale structure of the Universe. Such simulations usually solve for the gravita…
Lagrangian theory for cosmic structure formation with vorticity: Newtonian and post-Friedmann approximations
Cornelius Rampf, Eleonora Villa, Daniele Bertacca +1
We study the nonlinear gravitational dynamics of a universe filled with a pressureless fluid and a cosmological constant in the context of Newtonian gravity, and in the relativ…
Relativistic Lagrangian displacement field and tensor perturbations
Cornelius Rampf, Alexander Wiegand
We investigate the purely spatial Lagrangian coordinate transformation from the Lagrangian to the basic Eulerian frame. We demonstrate three techniques for extracting the relativis…
Astrophysical Bose-Einstein Condensates and Superradiance
Florian Kuhnel, Cornelius Rampf
We investigate gravitational analogue models to describe slowly rotating objects (e.g., dark-matter halos, or boson stars) in terms of Bose-Einstein condensates, trapped in their o…
Lagrangian perturbations and the matter bispectrum I: fourth-order model for non-linear clustering
Cornelius Rampf, Thomas Buchert
We investigate the Lagrangian perturbation theory of a homogeneous and isotropic universe in the non-relativistic limit, and derive the solutions up to the fourth order. These solu…