3 citations · 3 across the 2 of their papers we have counts for
8 papers
Comparing the motion of dark matter and standard model particles on cosmological scales
Nastassia Grimm, Camille Bonvin, Isaac Tutusaus
Since dark matter particles have never been directly detected, we do not know how they move, and in particular we do not know how they fall inside gravitational potential wells. Us…
The impact of evolving dark energy on the Weyl potential measured from the Dark Energy Survey Year 3 data
Benedetta Rosatello, Gen Ye, Maria Berti +3
Measurements from the Dark Energy Survey (DES) Year 3 data have shown that the Weyl potential -- the sum of the spatial and temporal distortions of the geometry -- evolves more slo…
Measurement of the Weyl potential evolution from the first three years of Dark Energy Survey data
Isaac Tutusaus, Camille Bonvin, Nastassia Grimm
The Weyl potential, which is the sum of the spatial and temporal distortions of the Universe's geometry, provides a direct way of testing the theory of gravity and the validity of…
A novel test of gravity: Does spacetime geometry track matter density?
Camille Bonvin, Nastassia Grimm, Isaac Tutusaus
We propose a novel test of gravity that combines galaxy clustering with gravitational lensing. In general relativity, the evolution of matter density fluctuations and of the Weyl p…
The impact of large-scale galaxy clustering on the variance of the Hellings-Downs correlation: numerical results
Nastassia Grimm, Martin Pijnenburg, Giulia Cusin +1
Pulsar timing array experiments have recently found evidence for a stochastic gravitational wave (GW) background, which induces correlations among pulsar timing residuals described…
The impact of large-scale galaxy clustering on the variance of the Hellings-Downs correlation: theoretical framework
Nastassia Grimm, Martin Pijnenburg, Giulia Cusin +1
While pulsar timing array experiments have recently found evidence for the existence of a stochastic gravitational wave (GW) background, its origin is still unclear. If this backgr…