Zobrazeno 1 - 10
of 1 079
pro vyhledávání: '"CARDOSO, VITOR"'
Ringdown Analysis of Rotating Black Holes in Effective Field Theory Extensions of General Relativity
Autor:
Maenaut, Simon, Carullo, Gregorio, Cano, Pablo A., Liu, Anna, Cardoso, Vitor, Hertog, Thomas, Li, Tjonnie G. F.
Quasinormal modes of rapidly rotating black holes were recently computed in a generic effective-field-theory extension of general relativity with higher-derivative corrections. We exploit this breakthrough to perform the most complete search for sign
Externí odkaz:
http://arxiv.org/abs/2411.17893
We study the dynamical response of viscous materials to gravitational waves, in the context of a fully relativistic theory of fluid dynamics. For the first time, we calculate oscillation modes and scattering properties of viscous stars. Viscous stars
Externí odkaz:
http://arxiv.org/abs/2411.16861
Black holes are extreme outcomes of General Relativity, and can form through a variety of ways, including gravitational collapse of massive stars, or quantum fluctuations in the early universe. Here, we ask the question of whether they can form via f
Externí odkaz:
http://arxiv.org/abs/2410.23347
Autor:
Afshordi, Niayesh, Ashtekar, Abhay, Barausse, Enrico, Berti, Emanuele, Brito, Richard, Buoninfante, Luca, Carballo-Rubio, Raúl, Cardoso, Vitor, Carullo, Gregorio, Dafermos, Mihalis, De Laurentis, Mariafelicia, del Rio, Adrian, Di Filippo, Francesco, Eichhorn, Astrid, Emparan, Roberto, Gregory, Ruth, Herdeiro, Carlos A. R., Kunz, Jutta, Lehner, Luis, Liberati, Stefano, Mathur, Samir D., Nissanke, Samaya, Pani, Paolo, Platania, Alessia, Pretorius, Frans, Sasaki, Misao, Tiede, Paul, Unruh, William, Visser, Matt, Wald, Robert M.
The gravitational physics landscape is evolving rapidly, driven by our ability to study strong-field regions, in particular black holes. Black Holes Inside and Out gathered world experts to discuss the status of the field and prospects ahead. We hope
Externí odkaz:
http://arxiv.org/abs/2410.14414
Using the Einstein cluster models, we construct a fully relativistic, spherically symmetric, spiky structure of matter distribution near a supermassive black hole. We introduce and discuss three simple toy models, together with a more realistic model
Externí odkaz:
http://arxiv.org/abs/2410.04175
Autor:
Cardoso, Vitor, Natário, José
The Schwarzschild-Melvin spacetime is an exact solution of the Einstein electrovacuum equations describing a black hole immersed in a magnetic field which is asymptotically aligned with the z-axis. It plays an important role in our understanding of t
Externí odkaz:
http://arxiv.org/abs/2410.02851
Tidal effects on compact objects provide profound theoretical insights into the structure of the field equations, and are wonderful probes of the equation of state of matter, the nature of black holes and of the underlying theory of gravity. The natu
Externí odkaz:
http://arxiv.org/abs/2410.02531
The response of astrophysical compact objects to external tidal fields carries valuable information on the nature of these objects, on the equation of state of matter, and on the underlying gravitational theory. In this work, we highlight subtleties
Externí odkaz:
http://arxiv.org/abs/2409.18034
We study electromagnetic radiation reaction on a charged particle around a weakly magnetized Kerr black hole. We solve numerically the Teukolsky equation to find energy fluxes in electromagnetic radiation at the horizon and at spatial infinity. We al
Externí odkaz:
http://arxiv.org/abs/2409.17225
Autor:
The GRAVITY Collaboration, Dayem, Karim Abd El, Abuter, Roberto, Aimar, Nicolas, Seoane, Pau Amaro, Amorim, Antonio, Beck, Julie, Berger, Jean Philippe, Bonnet, Henri, Bourdarot, Guillaume, Brandner, Wolfgang, Cardoso, Vitor, Dolcetta, Roberto Capuzzo, Clénet, Yann, Davies, Ric, de Zeeuw, Tim, Drescher, Antonia, Eckart, Andreas, Eisenhauer, Frank, Feuchtgruber, Helmut, Finger, Gert, Schreiber, Natascha M. Förster, Foschi, Arianna, Gao, Feng, Garcia, Paulo, Gendron, Eric, Genzel, Reinhard, Gillessen, Stefan, Hartl, Michael, Haubois, Xavier, Haussman, Frank, Heißel, Gernot, Hennig, Thomas, Hippler, Stefan, Horrobin, Matthew, Jochum, Lieselotte, Jocou, Laurent, Kaufer, Andreas, Kervella, Pierre, Lacour, Sylvestre, Lapeyrère, Vincent, Bouquin, Jean B. Le, Léna, Pierre, Lutz, Dieter, Mang, Felix, More, Nikhil, Ott, Thomas, Paumard, Thibaut, Perraut, Karine, Perrin, Guy, Pfuhl, Oliver, Rabien, Sebastien, Ribeiro, Diogo C., Bordoni, Matteo Sadun, Scheithauer, Silvia, Shangguan, Jinyi, Shimizu, Taro, Stadler, Julia, Straub, Odele, Straubmeier, Christian, Sturm, Eckhard, Tacconi, Linda J., Urso, Irene, Vincent, Frederic, Von Fellenberg, Sebastiano D., Widmann, Felix, Wieprecht, Ekkehard, Woillez, Julien, Zhang, Fupeng
Studying the orbital motion of stars around Sagittarius A* in the Galactic Center provides a unique opportunity to probe the gravitational potential near the supermassive black hole at the heart of our Galaxy. Interferometric data obtained with the G
Externí odkaz:
http://arxiv.org/abs/2409.12261