40 citations · 240 across the 16 of their papers we have counts for
15 papers · 1 filter
Generalised model-independent characterisation of strong gravitational lenses V: reconstructing the lensing distance ratio by supernovae for a general Friedmann universe
Jenny Wagner, Sven Meyer
We determine the cosmic expansion rate from supernovae of type Ia to set up a data-based distance measure that does not make assumptions about the constituents of the universe, i.e…
Long Range Effects in Gravity Theories with Vainshtein Screening
Moritz Platscher, Juri Smirnov, Sven Meyer +1
In this paper we study long range modifications of gravity in the consistent framework of bigravity, which introduces a second massive spin-2 field and allows to continuously inter…
Reconstruction of the two-dimensional gravitational potential of galaxy clusters from X-ray and Sunyaev-Zel'dovich measurements
C. Tchernin, M. Bartelmann, K. Huber +8
The mass of galaxy clusters is not a direct observable, nonetheless it is commonly used to probe cosmological models. Based on the combination of all main cluster observables, that…
On the implementation of the spherical collapse model for dark energy models
Francesco Pace, Sven Meyer, Matthias Bartelmann
In this work we review the theory of the spherical collapse model and critically analyse the aspects of the numerical implementation of its fundamental equations. By extending a re…
Effects of tidal gravitational fields in clustering dark energy models
Francesco Pace, Robert Reischke, Sven Meyer +1
We extend a previous work by Reischke et al., 2016 by studying the effects of tidal shear on clustering dark energy models within the framework of the extended spherical collapse m…
Shear and vorticity in the spherical collapse of dark matter haloes
Robert Reischke, Francesco Pace, Sven Meyer +1
Traditionally the spherical collapse of objects is studied with respect to a uniform background density, yielding the critical over-density as key ingredient to the…