Zobrazeno 1 - 10
of 198
pro vyhledávání: '"A Pereñiguez"'
Black hole perturbation theory on spherically symmetric backgrounds has been instrumental in establishing various aspects about the gravitational dynamics close to black holes, and continues to be an interesting avenue to confront current challenges
Externí odkaz:
http://arxiv.org/abs/2408.13557
Autor:
Cardoso, Vitor, Carullo, Gregorio, De Amicis, Marina, Duque, Francisco, Katagiri, Takuya, Pereniguez, David, Redondo-Yuste, Jaime, Spieksma, Thomas F. M., Zhong, Zhen
Publikováno v:
Phys. Rev. D 109, L121502 (2024)
Stationary, asymptotically flat, black hole solutions of the vacuum field equations of General Relativity belong to the Kerr family. But how does one approach this state, dynamically? Linearized fluctuations decay at late times, at fixed spatial posi
Externí odkaz:
http://arxiv.org/abs/2405.12290
Black hole superradiance has proven being very valuable in several realms of gravitational physics, and holds a promising discovery potential. In this paper, we show how it can sheed light on a long standing problem in physics, the quest for magnetic
Externí odkaz:
http://arxiv.org/abs/2402.05178
Publikováno v:
Phys. Rev. D 109, 044048 (2024)
The gravitational waves emitted (some time) after two black holes merge are well described by the theory of linear perturbations on a spacetime characterized by the mass and spin of the remnant. However, in the very early stages right after merger, b
Externí odkaz:
http://arxiv.org/abs/2312.04633
Autor:
Dyson, Conor, Pereñiguez, David
We consider accretion of charged test matter by rotating, magnetic black holes and discuss a number of aspects in which the interaction of the angular momentum contained in the electromagnetic field and the spin of the hole plays a fundamental role.
Externí odkaz:
http://arxiv.org/abs/2306.15751
We study extreme-mass-ratio systems in theories admitting the Schwarzschild solution and propagating a massive graviton. We show that, in addition to small corrections to the quadrupolar and higher-order modes, a dipolar mode is excited in these theo
Externí odkaz:
http://arxiv.org/abs/2304.01252
Autor:
Pereñiguez, David
Black holes can be electromagnetically charged, or carry vector charge from new fundamental fields. Their response to small fluctuations is of paramount importance to study gravitational wave generation. However, the usual even and odd sectors of gra
Externí odkaz:
http://arxiv.org/abs/2302.10942
Software Defined Networking (SDN) is a widely deployed technology enabling the agile and flexible management of networks and services. This paradigm represents an appropriate candidate to address the dynamic and secure management of large and complex
Externí odkaz:
http://arxiv.org/abs/2302.06957
Autor:
Ortin, Tomas, Pereñiguez, David
Using Wald's formalism, we study the thermodynamics (first laws and Smarr formulae) of asymptotically-flat black holes, rings etc. in a higher-dimensional higher-rank generalization of the Einstein-Maxwell theory. We show how to deal with the electri
Externí odkaz:
http://arxiv.org/abs/2207.12008
Autor:
Pereñíguez, Rosa, Ferri, Davide
Publikováno v:
In Materials Today Sustainability September 2024 27
