Vitor Cardoso
Instituto Superior Técnico
401 Papers
2.3K Citations
Vitor Cardoso is an academic researcher from Instituto Superior Técnico. The author has contributed to research in topics: Black hole & Gravitational wave. The author has an hindex of 86, co-authored 369 publications. Previous affiliations of Vitor Cardoso include University of Washington & Perimeter Institute for Theoretical Physics.
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Papers
Mining information from binary black hole mergers: A Comparison of estimation methods for complex exponentials in noise
TL;DR: In this paper, the Kumaresan-Tufts and matrix pencil methods were compared with nonlinear least-squares fitting methods to estimate ringdown parameters from ringdown signals after a binary black hole merger.
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Quasinormal Modes and Gravitational Radiation in Black Hole Spacetimes
TL;DR: In this paper, the authors make a thorough study of the quasinormal modes of black holes in several kinds of background spacetimes, and investigate the gravitational radiation given away when highly energetic particles collide with black holes, and also when two black holes collide with each other.
Numerical relativity for D dimensional axially symmetric space-times: Formalism and code tests
Miguel Zilhão,Helvi Witek,Ulrich Sperhake,Vitor Cardoso,Vitor Cardoso,Leonardo Gualtieri,Carlos A. R. Herdeiro,Andrea Nerozzi +7 more
TL;DR: In this paper, the authors extend numerical relativity to more general space-times than those investigated hitherto, by developing a framework to study the numerical evolution of D dimensional vacuum space times with an SO(D-2) isometry group for D≥5, or SO (D-3) for D ≥ 6.
Perturbed black holes in Einstein-dilaton-Gauss-Bonnet gravity: Stability, ringdown, and gravitational-wave emission
Jose Luis Blázquez-Salcedo,Caio F. B. Macedo,Vitor Cardoso,Vitor Cardoso,Vitor Cardoso,Valeria Ferrari,Leonardo Gualtieri,Fech Scen Khoo,Jutta Kunz,Paolo Pani,Paolo Pani +10 more
TL;DR: In this article, the topological Gauss-Bonnet invariant coupled to a dilaton was shown to be stable against both axial and polar perturbations, and the quasinormal modes of black holes can be excited during collisions involving black holes.
Gravitational wave signatures of the absence of an event horizon. II. Extreme mass ratio inspirals in the spacetime of a thin-shell gravastar
TL;DR: In this article, the authors considered a nonrotating thin-shell gravastar and showed that the power radiated in gravitational waves during the inspiral shows distinctive peaks corresponding to the excitation of the polar oscillation modes of the gravastars.