166 citations · 1.5k across the 42 of their papers we have counts for
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Angular Momenta in Vacuum Critical Collapse
Oscar J. C. Dias, Carsten Gundlach, Jorge E. Santos +1
We investigate the critical collapse of gravitational waves that carry angular momenta. Working in five-dimensional vacuum Einstein gravity under an SU symmet…
Spinning Black Binaries in de Sitter space
Oscar J. C. Dias, Jorge E. Santos, Benson Way
We construct stationary, rotating black binaries in general relativity with a positive cosmological constant. We consider identical black holes with either aligned or anti-aligned…
Static Black Binaries in de Sitter
Oscar J. C. Dias, Gary W. Gibbons, Jorge E. Santos +1
We construct the first four-dimensional multi-black hole solution of general relativity with a positive cosmological constant. The solution consists of two static black holes whose…
Superradiance and black resonator strings encounter helical black strings
Oscar J. C. Dias, Takaaki Ishii, Keiju Murata +2
We construct a cohomogeneity-1 helical black string in six-dimensional Einstein gravity. The helical solution branches from the onset of the gravitational superradiant instability…
Gregory-Laflamme and Superradiance encounter Black Resonator Strings
Oscar J. C. Dias, Takaaki Ishii, Keiju Murata +2
We construct novel black strings that are neither time-translation invariant, nor axisymmetric, nor translationally invariant in the string direction, but nevertheless have a helic…
Gregory-Laflamme encounters Superradiance
Oscar J. C. Dias, Takaaki Ishii, Keiju Murata +2
We investigate the effect of superradiant scattering of gravitational perturbations on the stability of rotating black strings, focusing on the six dimensional equal-spinning Myers…
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…