2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
11 papers · 2 filters
Quasinormal modes of regular black holes
Antonino Flachi, José P. S. Lemos
Black hole quasinormal frequencies are complex numbers that encode information on how a black hole relaxes after it has been perturbed and depend on the features of the geometry an…
Universality, maximum radiation and absorption in high-energy collisions of black holes with spin
Ulrich Sperhake, Emanuele Berti, Vitor Cardoso +1
We explore the impact of black hole spins on the dynamics of high-energy black hole collisions. We report results from numerical simulations with gamma-factors up to 2.49 and dimen…
Probing the Flyby Anomaly with the future STE-QUEST mission
Jorge Páramos, Gerald Hechenblaikner
In this study, we demonstrate that the flyby anomaly, an unexpected acceleration detected in some of the gravitational assists of the Galileo, NEAR, Cassini and Rosetta spacecraft,…
Perturbations of slowly rotating black holes: massive vector fields in the Kerr metric
Paolo Pani, Vitor Cardoso, Leonardo Gualtieri +2
We discuss a general method to study linear perturbations of slowly rotating black holes which is valid for any perturbation field, and particularly advantageous when the field equ…
Black-Hole Bombs and Photon-Mass Bounds
Paolo Pani, Vitor Cardoso, Leonardo Gualtieri +2
Generic extensions of the standard model predict the existence of ultralight bosonic degrees of freedom. Several ongoing experiments are aimed at detecting these particles or const…
The problem of a self-gravitating scalar field with positive cosmological constant
Joao L. Costa, Artur Alho, Jose Natario
We study the Einstein-scalar field system with positive cosmological constant and spherically symmetric characteristic initial data given on a truncated null cone. We prove well-po…
Stationary Black Holes: Uniqueness and Beyond
Piotr T. Chruściel, João Lopes Costa, Markus Heusler
The spectrum of known black-hole solutions to the stationary Einstein equations has been steadily increasing, sometimes in unexpected ways. In particular, it has turned out that no…
On the comparison of results regarding the post-Newtonian approximate treatment of the dynamics of extended spinning compact binaries
Steven Hergt, Jan Steinhoff, Gerhard Schaefer
A brief review is given of all the Hamiltonians and effective potentials calculated hitherto covering the post-Newtonian (pN) dynamics of a two body system. A method is presented t…
Tidal acceleration of black holes and superradiance
Vitor Cardoso, Paolo Pani
Tidal effects have long ago locked the Moon in synchronous rotation with the Earth and progressively increase the Earth-Moon distance. This "tidal acceleration" hinges on dissipati…
Eddington-inspired Born-Infeld gravity. Phenomenology of non-linear gravity-matter coupling
Paolo Pani, Terence Delsate, Vitor Cardoso
Viable corrections to the matter sector of Poisson's equation may result in qualitatively different astrophysical phenomenology, for example the gravitational collapse and the prop…
Light propagation with non-minimal couplings in a two-component cosmic dark fluid with an Archimedean-type force and unlighted cosmological epochs
Alexander B. Balakin, Vladimir V. Bochkarev, José P. S. Lemos
During the evolution of the universe there are at least two epochs during which electromagnetic waves cannot scan the universe's internal structure neither bring information to out…