162 citations · 246 across the 9 of their papers we have counts for
4 papers · 1 filter
BiGONLight: light propagation with bi-local operators in Numerical Relativity
Michele Grasso, Eleonora Villa
BiGONLight, Bi-local Geodesic Operators framework for Numerical Light propagation, is a new tool for light propagation in Numerical Relativity. The package implements the Bi-local…
Geometric optics in relativistic cosmology: new formulation and a new observable
Mikołaj Korzyński, Eleonora Villa
We discuss a new formalism for light propagation which can be used within the regime of validity of geometric optics, but with no limitation on the scales of interest: from inside…
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 perturbations in CDM: Eulerian & Lagrangian approaches
Eleonora Villa, Cornelius Rampf
We study the relativistic dynamics of a pressure-less and irrotational fluid of dark matter (CDM) with a cosmological constant (), up to second order in cosmological perturbatio…