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
18 papers · 2 filters
Black holes and quasiblack holes: Some history and remarks
José P. S. Lemos
A brief reference to the two Schwarzschild solutions and what Petrov had to say about them is given. Comments on how the Schwarzschild vacuum solution describes a black hole are al…
Gravitational Waves from Quasicircular Extreme Mass-Ratio Inspirals as Probes of Scalar-Tensor Theories
Nicolas Yunes, Paolo Pani, Vitor Cardoso
A stellar-mass compact object spiraling into a supermassive black hole, an extreme-mass-ratio inspiral (EMRI), is one of the targets of future gravitational-wave detectors and it o…
Localizing modes of massive fermions and a U(1) gauge field in the inflating baby-skyrmion branes
Térence Delsate, Nobuyuki Sawado
We consider the six dimensional brane world model, where the brane is described by a localized solution to the baby-Skyrme model extending in the extradimensions. The branes have a…
Slowly rotating black holes in alternative theories of gravity
Paolo Pani, Caio F. B. Macedo, Luis C. B. Crispino +1
We present, in closed analytic form, a general stationary, slowly rotating black hole, which is solution to a large class of alternative theories of gravity in four dimensions. In…
Elimination of the spin supplementary condition in the effective field theory approach to the post-Newtonian approximation
Steven Hergt, Jan Steinhoff, Gerhard Schaefer
The present paper addresses open questions regarding the handling of the spin supplementary condition within the effective field theory approach to the post-Newtonian approximation…
Compact stars in alternative theories of gravity. Einstein-Dilaton-Gauss-Bonnet gravity
Paolo Pani, Emanuele Berti, Vitor Cardoso +1
We develop a theoretical framework to study slowly rotating compact stars in a rather general class of alternative theories of gravity, with the ultimate goal of investigating cons…
Floating and sinking: the imprint of massive scalars around rotating black holes
Vitor Cardoso, Sayan Chakrabarti, Paolo Pani +2
We study the coupling of massive scalar fields to matter in orbit around rotating black holes. It is generally expected that orbiting bodies will lose energy in gravitational waves…
Leading-order spin-orbit and spin(1)-spin(2) radiation-reaction Hamiltonians
Han Wang, Jan Steinhoff, Jing Zeng +1
In the present paper, the leading-order post-Newtonian spin-orbit and spin(1)-spin(2) radiation-reaction Hamiltonians are calculated. We utilize the canonical formalism of Arnowitt…
Membrane paradigm and entropy of black holes in the Euclidean action approach
José P. S. Lemos, Oleg B. Zaslavskii
The membrane paradigm approach to black holes fixes in the vicinity of the event horizon a fictitious surface, the stretched horizon, so that the spacetime outside remains unchange…
Next-to-next-to-leading order post-Newtonian spin(1)-spin(2) Hamiltonian for self-gravitating binaries
Johannes Hartung, Jan Steinhoff
We present the next-to-next-to-leading order post-Newtonian (PN) spin(1)-spin(2) Hamiltonian for two self-gravitating spinning compact objects. If both objects are rapidly rotating…
Numerical simulations of black-hole binaries and gravitational wave emission
Ulrich Sperhake, Emanuele Berti, Vitor Cardoso
We review recent progress in numerical relativity simulations of black-hole (BH) spacetimes. Following a brief summary of the methods employed in the modeling, we summarize the key…
Spherical linear waves in de Sitter spacetime
Joao L. Costa, Artur Alho, Jose Natario
We apply Christodoulou's framework, developed to study the Einstein-scalar field equations in spherical symmetry, to the linear wave equation in de Sitter spacetime, as a first ste…
Compact stars in Eddington inspired gravity
Paolo Pani, Vitor Cardoso, Terence Delsate
A new, Eddington inspired theory of gravity was recently proposed by Banados and Ferreira. It is equivalent to General Relativity in vacuum, but differs from it inside matter. This…
Testing the Cosmic Censorship Conjecture with point particles: the effect of radiation reaction and the self-force
Enrico Barausse, Vitor Cardoso, Gaurav Khanna
A classical thought-experiment to destroy black holes was envisaged by Wald in 1974: it consists of throwing particles with large angular momentum into an extremal black hole, chec…
OSS (Outer Solar System): A fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt
Bruno Christophe, Linda J. Spilker, John D. Anderson +46
The present OSS mission continues a long and bright tradition by associating the communities of fundamental physics and planetary sciences in a single mission with ambitious goals…
Extreme black hole simulations: collisions of unequal mass black holes and the point particle limit
Ulrich Sperhake, Vitor Cardoso, Christian D. Ott +2
Numerical relativity has seen incredible progress in the last years, and is being applied with success to a variety of physical phenomena, from gravitational-wave research and rela…
Comparing numerical and analytical calculations of post-ISCO ringdown amplitudes
Shahar Hadar, Barak Kol, Emanuele Berti +1
We numerically compute the ringdown amplitudes following the plunge of a particle from the innermost stable circular orbit (ISCO) of a Schwarzschild black hole in the extreme-mass…
Gravitational waves from extreme mass-ratio inspirals in Dynamical Chern-Simons gravity
Paolo Pani, Vitor Cardoso, Leonardo Gualtieri
Dynamical Chern-Simons gravity is an interesting extension of General Relativity, which finds its way in many different contexts, including string theory, cosmological settings and…