1.2k citations · 23.1k across the 316 of their papers we have counts for
331 papers
Photon escape cones, physical and optical metrics, asymptotic and near-horizon physics
Joshua Baines, Matt Visser
We consider the explicit analytic behaviour of photon escape cones in generic static spherically symmetric spacetimes, emphasizing the interplay between the physical spacetime metr…
Black holes embedded in FLRW cosmologies
Rudeep Gaur, Matt Visser
There has recently been some considerable interest expressed in a highly speculative model of black hole evolution -- allegedly by a postulated direct coupling between black holes…
Defect wormholes are defective
Joshua Baines, Rudeep Gaur, Matt Visser
The various "defect wormholes" developed by Klinkhamer have recently attracted considerable attention -- especially in view of the fact that the simplest example, the so-called "va…
Constraints on thermalizing surfaces from infrared observations of supermassive black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
Infrared observations of Sgr A and M87 are incompatible with the assumption that these sources have physical surfaces in thermal equilibrium with their accreting environmen…
Explicit formulae for surface gravities in stationary circular axi-symmetric spacetimes
Joshua Baines, Matt Visser
Using minimalist assumptions we develop a natural functional decomposition for the spacetime metric, and explicit tractable formulae for the surface gravities, in arbitrary station…
Black holes, white holes, and near-horizon physics
Rudeep Gaur, Matt Visser
Black and white holes play remarkably contrasting roles in general relativity versus observational astrophysics. While there is overwhelming observational evidence for the existenc…