Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

Very compact objects probe extreme gravitational fields and may be the key to understand
outstanding puzzles in fundamental physics. These include the nature of dark matter, the …

The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

AIM, UMR 7158, CEA/DRF, CNRS, Université Paris Diderot, Irfu/Service d'Astrophysique,
Centre de Saclay, FR-91191 Gif-sur-Yvette, France

Recently a D-dimensional regularization approach leading to the non-trivial (3+ 1)(3+ 1)-
dimensional Einstein–Gauss–Bonnet (EGB) effective description of gravity was formulated …

We consider a general Einstein-scalar-Gauss-Bonnet theory with a coupling function f (ϕ).
We demonstrate that black-hole solutions appear as a generic feature of this theory since a …

The no-hair conjecture in general relativity (GR) states that the properties of an astrophysical
Kerr black hole (BH) are completely described by its mass and spin. As a consequence, the …

Gravitational wave observations of compact binaries allow us to test general relativity (and
modifications thereof) in the strong and highly dynamical field regime of gravity. Here, we …

We reduce the study of perturbations of rotating black holes in higher-derivative extensions
of general relativity to a system of decoupled radial equations that stem from a set of …

The LIGO/Virgo detections of binary black hole mergers marked a watershed moment in
astronomy, ushering in the era of precision tests of Kerr dynamics. We review theoretical and …