120 citations · 244 across the 7 of their papers we have counts for
4 papers · 1 filter
Distinguishing rotating naked singularities from Kerr-like wormholes by their deflection angles of massive particles
Kimet Jusufi, Ayan Banerjee, Galin Gyulchev +1
We study the gravitational deflection of relativistic massive particles by Janis-Newman-Winicour (JNW) spacetimes (also known as a rotating source with a surface-like naked singula…
Weak Gravitational lensing by phantom black holes and phantom wormholes using the Gauss-Bonnet theorem
Ali Övgün, Galin Gyulchev, Kimet Jusufi
In this paper, we study the deflection of light by a class of phantom black hole and wormhole solutions in the weak limit approximation. More specifically, in the first part of thi…
On the shadow of rotating traversable wormholes
Galin Gyulchev, Petya Nedkova, Vassil Tinchev +1
We revisit the shadow of rotating traversable wormholes discussing the role of the wormhole throat in the shadow formation. For certain classes of wormholes the throat serves as a…
Shadows of Black Holes in Vector-Tensor Galileons Modified Gravity
Tsvetan Vetsov, Galin Gyulchev, Stoytcho Yazadjiev
We study the shadows of disformal black holes in vector-tensor Galileons modified gravity. Our analysis shows that the apparent image of the black hole in the observer's sky is non…