299 citations · 400 across the 11 of their papers we have counts for
10 papers · 1 filter
Testing the Equivalence Principle in Galaxy Clusters
Enea Di Dio, Sveva Castello, Camille Bonvin
Clusters of galaxies have been used to measure a subtle effect predicted by Einstein: gravitational redshift. This signal encodes pristine information about our Universe, since it…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Gravitational Redshift from Galaxy Clusters -- a Relativistic Approach
Enea Di Dio, Sveva Castello, Camille Bonvin
The light that we receive from clusters of galaxies is redshifted by the presence of the clusters' gravitational potential. This effect, known as gravitational redshift, was first…
Testing the equivalence principle across the Universe: a model-independent approach with galaxy multi-tracing
Sveva Castello, Ziyang Zheng, Camille Bonvin +1
We present a test of the equivalence principle on cosmological scales. This cornerstone of general relativity has been tested with high precision for standard matter, but its valid…
Disentangling modified gravity from a dark force with gravitational redshift
Sveva Castello, Zhuangfei Wang, Lawrence Dam +2
The standard approach to test for deviations from general relativity on cosmological scales is to combine measurements of the growth rate of structure with gravitational lensing. I…
Gravitational Redshift Constraints on the Effective Theory of Interacting Dark Energy
Sveva Castello, Michele Mancarella, Nastassia Grimm +3
Upcoming galaxy surveys provide the necessary sensitivity to measure gravitational redshift, a general relativistic effect that generates a dipole in galaxy clustering data when co…
Rescuing constraints on modified gravity using gravitational redshift in large-scale structure
Sveva Castello, Nastassia Grimm, Camille Bonvin
The distribution of galaxies provides an ideal laboratory to test for deviations from General Relativity. In particular, redshift-space distortions are commonly used to constrain m…
A Cautionary Tale: Dark Energy in Single-Field, Slow-Roll Inflationary Models
Sveva Castello, Stéphane Ilić, Martin Kunz
The current epoch of accelerated cosmic expansion is postulated to be driven by dark energy, which in the standard model takes the form of a cosmological constant with equation of…
A Cosmological Underdensity Does Not Solve the Hubble Tension
Sveva Castello, Marcus Högås, Edvard Mörtsell
A potential solution to the Hubble tension is the hypothesis that the Milky Way is located near the center of a matter underdensity. We model this scenario through the Lemaître-Tol…
An updated dark energy view of inflation
Sveva Castello, Stéphane Ilić, Martin Kunz
The present epoch of accelerated cosmic expansion is supposed to be driven by an unknown constituent called dark energy, which in the standard model takes the form of a cosmologica…