249 citations
- Champlain Regional CollegeCA16 papers
- Université de MontréalCA14 papers
- Massachusetts Institute of TechnologyUS12 papers
- Ames Research CenterUS10 papers
- Université de SherbrookeCA10 papers
- California Institute of TechnologyUS8 papers
- Center for Astrophysics Harvard & SmithsonianUS8 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Princeton UniversityUS7 papers
- Instituto de Astrofísica de CanariasES6 papers
- Royal Military College of CanadaCA6 papers
- Search for Extraterrestrial IntelligenceUS6 papers
4 papers · 1 filter
Rotating black holes in a draining bathtub: superradiant scattering of gravity waves
Mauricio Richartz, Angus Prain, Stefano Liberati +1
In a draining rotating fluid flow background, surface perturbations behave as a scalar field on a rotating effective black hole spacetime. We propose a new model for the background…
Restricted Weyl invariance in four-dimensional curved spacetime
Ariel Edery, Yu Nakayama
We discuss the physics of {\it restricted Weyl invariance}, a symmetry of dimensionless actions in four dimensional curved space time. When we study a scalar field nonminimally cou…
Covariantizing the interaction between dark energy and dark matter
Valerio Faraoni, James B. Dent, Emmanuel N. Saridakis
Coupling dark energy and dark matter through an effective fluid description is a very common procedure in cosmology, however it always remains in comoving coordinates in the specia…
The charged McVittie spacetime
Valerio Faraoni, Andres F. Zambrano Moreno, Angus Prain
The two-parameter charged McVittie solution of the Einstein equations is revisited and its apparent horizons are discussed and located numerically (for the extremal case, analytica…