62 citations · 173 across the 6 of their papers we have counts for
6 papers
Black holes and wormholes subject to conformal mappings
Valerio Faraoni, Angus Prain, Andres F. Zambrano Moreno
Solutions of the field equations of theories of gravity which admit distinct conformal frame representations can look very different in these frames. We show that Brans class IV so…
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…
Are quantization rules for horizon areas universal?
Valerio Faraoni, Andres F. Zambrano Moreno
Doubts have been expressed on the universality of holographic/string-inspired quantization rules for the horizon areas of stationary black holes or the products of their radii, alr…
Interpreting the conformal cousin of the Husain-Martinez-Nunez solution
Valerio Faraoni, Andres F. Zambrano Moreno
A 2-parameter inhomogeneous cosmology in Brans-Dicke theory, obtained by conformally transforming the Husain-Martinez-Nunez (HMN) scalar field solution of the Einstein equations is…
Making sense of the bizarre behaviour of horizons in the McVittie spacetime
Valerio Faraoni, Andres F. Zambrano Moreno, Roshina Nandra
The bizarre behaviour of the apparent (black hole and cosmological) horizons of the McVittie spacetime is discussed using, as an analogy, the Schwarzschild-de Sitter-Kottler spacet…
Are stealth scalar fields stable?
Valerio Faraoni, Andres F. Zambrano Moreno
Non-gravitating (stealth) scalar fields associated with Minkowski space in scalar-tensor gravity are examined. Analytical solutions for both non-minimally coupled scalar field theo…