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The pseudospectra of black holes in AdS
Brad Cownden, Christiana Pantelidou, Miguel Zilhão
We study the stability of quasinormal modes (QNMs) in electrically charged black brane spacetimes that asymptote to AdS by means of the pseudospectrum. Methodologically, we adopt i…
Waveform Modelling for the Laser Interferometer Space Antenna
LISA Consortium Waveform Working Group, Niayesh Afshordi, Sarp Akçay +144
LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will exp…
Piercing of a solitonic boson star by a black hole
Zhen Zhong, Vitor Cardoso, Taishi Ikeda +1
Recently, the piercing of a mini boson star by a black hole was studied, with tidal capture and the discovery of a "gravitational atom" being reported ( arXiv:2206.00021 [gr-qc] ).…
Self-interacting dipolar boson stars and their dynamics
Pedro Ildefonso, Miguel Zilhão, Carlos Herdeiro +2
We construct and dynamically evolve dipolar, self-interacting scalar boson stars in a model with sextic (+ quartic) self-interactions. The domain of existence of such dipolar -s…
Numerical convergence of model Cauchy-characteristic extraction and matching
Thanasis Giannakopoulos, Nigel T. Bishop, David Hilditch +2
Gravitational waves provide a powerful enhancement to our understanding of fundamental physics. To make the most of their detection we need to accurately model the entire process o…
Stability and physical properties of spherical excited scalar boson stars
Marco Brito, Carlos Herdeiro, Eugen Radu +2
We study the time evolution of spherical, excited -- with radial nodes -- scalar boson stars in General Relativity minimally coupled to a complex massive scalar field with quar…