2.3k citations · 32.3k across the 282 of their papers we have counts for
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The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits
GRAVITY Collaboration, R. Abuter, N. Aimar +62
The stars orbiting the compact radio source Sgr A* in the Galactic Centre are precision probes of the gravitational field around the closest massive black hole. In addition to adap…
Deep Images of the Galactic Center with GRAVITY
GRAVITY Collaboration, R. Abuter, N. Aimar +65
Stellar orbits at the Galactic Center provide a very clean probe of the gravitational potential of the supermassive black hole. They can be studied with unique precision, beyond th…
ECO-spotting: looking for extremely compact objects with bosonic fields
Vitor Cardoso, Caio F. B. Macedo, Kei-ichi Maeda +1
Black holes are thought to describe the geometry of massive, dark compact objects in the universe. To further support and quantify this long-held belief requires knowledge of possi…
Love numbers and magnetic susceptibility of charged black holes
David Pereñiguez, Vitor Cardoso
The response of black holes to companions is of fundamental importance in the context of their dynamics and of gravitational-wave emission. Here, we explore the effect of charge on…
Quasinormal modes of Proca fields in a Schwarzschild-AdS spacetime
Tiago V. Fernandes, David Hilditch, José P. S. Lemos +1
We present new results concerning the Proca massive vector field in a Schwarzschild-AdS black hole geometry. We provide a first principles analysis of Proca vector fields in this g…
Faint objects in motion: the new frontier of high precision astrometry
Fabien Malbet, Céline Boehm, Alberto Krone-Martins +83
Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint ob…
Destabilizing the Fundamental Mode of Black Holes: The Elephant and the Flea
Mark Ho-Yeuk Cheung, Kyriakos Destounis, Rodrigo Panosso Macedo +2
Recent work applying the notion of pseudospectrum to gravitational physics showed that the quasinormal mode spectrum of black holes is unstable, with the possible exception of the…
Instabilities of scalar fields around oscillating stars
Taishi Ikeda, Vitor Cardoso, Miguel Zilhão
The behavior of fundamental fields in strong gravity or nontrivial environments is important for our understanding of nature. This problem has interesting applications in the conte…
Black holes in galaxies: environmental impact on gravitational-wave generation and propagation
Vitor Cardoso, Kyriakos Destounis, Francisco Duque +2
We introduce a family of solutions of Einstein's gravity minimally coupled to an anisotropic fluid, describing asymptotically flat black holes with "hair" and a regular horizon. Th…
Evaporating black holes: constraints on anomalous emission mechanisms
Chen Yuan, Richard Brito, Vitor Cardoso
Hawking radiation of astrophysical black holes is minute and thought to be unobservable. However, different mechanisms could contribute to an anomalously high emission rate: extra…
Pseudospectrum of Reissner-Nordström black holes: quasinormal mode instability and universality
Kyriakos Destounis, Rodrigo Panosso Macedo, Emanuele Berti +2
Black hole spectroscopy is a powerful tool to probe the Kerr nature of astrophysical compact objects and their environment. The observation of multiple ringdown modes in gravitatio…
The Effect of Mission Duration on LISA Science Objectives
Pau Amaro Seoane, Manuel Arca Sedda, Stanislav Babak +38
The science objectives of the LISA mission have been defined under the implicit assumption of a 4 yr continuous data stream. Based on the performance of LISA Pathfinder, it is now…
Geodesic structure and quasinormal modes of a tidally perturbed spacetime
Vitor Cardoso, Arianna Foschi
Tidal perturbations play an important role in the study of the dynamics in the classical two-body system. Understanding tidal effects in strong-field regions may allow one to use g…
Divergences in gravitational-wave emission and absorption from extreme mass ratio binaries
Enrico Barausse, Emanuele Berti, Vitor Cardoso +2
A powerful technique to calculate gravitational radiation from binary systems involves a perturbative expansion: if the masses of the two bodies are very different, the "small" bod…
Probing ultralight dark matter with future ground-based gravitational-wave detectors
Chen Yuan, Richard Brito, Vitor Cardoso
Ultralight bosons are possible fundamental building blocks of nature, and promising dark matter candidates. They can trigger superradiant instabilities of spinning black holes (BHs…
Absorption spectroscopy of quantum black holes with gravitational waves
Ivan Agullo, Vitor Cardoso, Adrián del Rio +2
The observation of electromagnetic radiation emitted or absorbed by matter was instrumental in revealing the quantum properties of atoms and molecules in the early XX century, and…
Applications of the close-limit approximation: horizonless compact objects and scalar fields
Lorenzo Annulli, Vitor Cardoso, Leonardo Gualtieri
The ability to model the evolution of compact binaries from the inspiral to coalescence is central to gravitational wave astronomy. Current waveform catalogues are built from vacuu…
The light ring and the appearance of matter accreted by black holes
Vitor Cardoso, Francisco Duque, Arianna Foschi
The geometry of black hole spacetimes can be probed with exquisite precision in the gravitational-wave window, and possibly also in the optical regime. We study the accretion of br…
Gravitational tuning forks and hierarchical triple systems
Vitor Cardoso, Francisco Duque, Gaurav Khanna
We study gravitational wave (GW) emission in the strong-field regime by a hierarchical triple system composed of a binary system placed in the vicinity of a supermassive black hole…