15 citations · 35 across the 8 of their papers we have counts for
8 papers
On Chen-Teo geometries with cosmological constant
Bernardo Araneda
The Chen-Teo geometry is a Riemannian, Ricci-flat ALF 4-manifold, containing an AF gravitational instanton that gives the first counterexample to the Euclidean black hole uniquenes…
On toric self-dual Einstein gravitational instantons
Bernardo Araneda, James Lucietti, Virinchi Rallabhandi
We consider the classification of toric self-dual Einstein gravitational instantons with negative cosmological constant. As is well known, any Killing vector field on a self-dual E…
surfaces and global coordinates in black hole spacetimes
Bernardo Araneda, Bernard F. Whiting
We present a discussion of the periodicity in imaginary time of maximally extended black hole spacetimes without reference to Euclidean manifolds. As motivation, we first demonstra…
Complex conformal transformations and zero-rest-mass fields
Bernardo Araneda
We give a simple prescription for relating different solutions to the zero-rest-mass field equations in conformally flat space-time via complex conformal transformations and change…
Twistor quadrics and black holes
Bernardo Araneda
A simple procedure is given to construct curved, non-self-dual (complexified) Kaehler metrics on space-time in terms of deformations of holomorphic quadric surfaces in flat twistor…
Instability of asymptotically anti de Sitter black holes under Robin conditions at the timelike boundary
Bernardo Araneda, Gustavo Dotti
The static region outside the event horizon of an asymptotically anti de Sitter black hole has a conformal timelike boundary on which boundary conditions have to be i…
Symmetry operators and decoupled equations for linear fields on black hole spacetimes
Bernardo Araneda
In the class of vacuum Petrov type D spacetimes with cosmological constant, which includes the Kerr-(A)dS black hole as a particular case, we find a set of four-dimensional operato…
Petrov type of linearly perturbed type D spacetimes
Bernardo Araneda, Gustavo Dotti
We show that a spacetime satisfying the linearized vacuum Einstein equations around a type D background is generically of type I, and that the splittings of the Principal Null Dire…