56 citations · 152 across the 7 of their papers we have counts for
7 papers
Boson stars and solitons confined in a Minkowski box
Oscar J. C. Dias, Ramon Masachs, Paul Rodgers
We consider the static charged black hole bomb system, originally designed for a (uncharged) rotating superradiant system by Press and Teukolsky. A charged scalar field confined in…
Hunting for fermionic instabilities in charged AdS black holes
Oscar J. C. Dias, Ramon Masachs, Olga Papadoulaki +1
Fermions scattering on a black hole background cannot develop an instability sourced by superradiance. However, in a global (or planar) AdS-Reissner-Nordström background fermio…
New islands of stability with double-trace deformations
Ramon Masachs, Benson Way
We assess the role of a resonant spectrum in the AdS instability, and quantify the extent to which breaking the resonant spectrum of AdS can restore stability. Specifically, we stu…
Multi-oscillating Boson Stars
Matthew Choptuik, Ramon Masachs, Benson Way
We propose that stable boson stars generically fall within an infinite-parameter family of solutions that oscillate on any number of non-commensurate frequencies. We numerically co…
Evading no-hair theorems: hairy black holes in a Minkowski box
Oscar J. C. Dias, Ramon Masachs
We find hairy black holes of Einstein-Maxwell theory with a complex scalar field that is confined inside a box in a Minkowski background. These regular hairy black holes are asympt…
Charged black hole bombs in a Minkowski cavity
Oscar J. C. Dias, Ramon Masachs
Press and Teukolsky famously introduced the concept of a black hole bomb system: a scalar field scattering a Kerr black hole confined inside a mirror undergoes superradiant amplifi…
Hairy black holes and the endpoint of AdS charged superradiance
Oscar J. C. Dias, Ramon Masachs
We construct hairy black hole solutions that merge with the anti-de Sitter (AdS) Reissner-Nordström black hole at the onset of superradiance. These hairy black holes have, for…