15 papers
Einstein Frame Regularization of the JNW Spacetime: From Brans-Dicke Singularity to Ellis Wormhole
A. Bhattacharya, R. N. Izmailov, R. Kh. Karimov
We propose a novel way to achieve the regularization of the JNW globally naked singularity sourced by the canonical Einstein minimally coupled scalar field (EMS). The key idea is t…
Stability regions of glued wormholes with massless Kim-Lee backreacted spacetimes as interior
G. F. Akhtaryanova, R. Kh. Karimov, R. N. Izmailov +1
Asymptotic zero Arnowitt-Deser-Misner (ADM) mass wormholes, such as the zero-mass traversable Ellis-Bronnikov wormhole, are of great interest for astrophysical applications such as…
Comments on the non-existence of unified hoop conjecture
A. Bhattacharya, R. N. Izmailov, R. Kh. Karimov
In a recent article, Hod [1] has concluded the non-existence, heretofore unnoticed, of a unified Thorne's hoop conjecture that holds for the quasi-local mass, $\mathcal{M}(r\leq R_…
On the Kalb-Ramond modified Lorentz violating hairy black holes and Thorne's hoop conjecture
K. K. Nandi, R. N. Izmailov, R. Kh. Karimov +1
Recently, a class of static spherically symmetric power law corrected Lorentz violating (LV) Schwarzschild black holes in the Kalb-Ramond model have been derived and studied in the…
Damour-Solodukhin Wormhole as a Black Hole Mimicker: The Role of Observers' Location
K. K. Nandi, R. Kh. Karimov, R. N. Izmailov +1
It has been recently argued that in semi-classical gravity, a minimal 2-sphere is not a horizon but a tiny throat of a wormhole, such as the Damour--Solodukhin wormhole (DSWH), wit…
Gravitational time advancement effect in Bumblebee gravity for Earth bound systems
G. Y. Tuleganova, R. Kh. Karimov, R. N. Izmailov +3
This paper is a novel application of the new effect of gravitational time advancement or \textit{negative} time delay, first predicted for static black holes (spin ), that can…