174 citations · 342 across the 5 of their papers we have counts for
5 papers
Description of our cosmological spacetime as a perturbed conformal Newtonian metric and implications for the backreaction proposal for the accelerating universe
Edward W. Kolb, Valerio Marra, Sabino Matarrese
It has been argued that the spacetime of our universe can be accurately described by a perturbed conformal Newtonian metric, and hence even large density inhomogeneities in a dust…
On cosmological observables in a swiss-cheese universe (Conference proceeding)
Valerio Marra
By means of a toy Swiss-cheese cosmological model we will discuss how to set up and carry out in a physically meaningful way the idea of back-reaction, according to which dark ener…
A back-reaction approach to dark energy
Valerio Marra
This thesis is mainly about how to set up and carry out in a physically meaningful way the idea of back-reaction, according to which dark energy could be an effective source. There…
Light-cone averages in a swiss-cheese universe
Valerio Marra, Edward W. Kolb, Sabino Matarrese
We analyze a toy swiss-cheese cosmological model to study the averaging problem. In our model, the cheese is the EdS model and the holes are constructed from a LTB solution. We stu…
On cosmological observables in a swiss-cheese universe
Valerio Marra, Edward W. Kolb, Sabino Matarrese +1
Photon geodesics are calculated in a swiss-cheese model, where the cheese is made of the usual Friedmann-Robertson-Walker solution and the holes are constructed from a Lemaitre-Tol…