106 citations · 232 across the 22 of their papers we have counts for
22 papers
5D black holes and mirror (topological) stars from nonlinear electrodynamics: Existence and stability
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova
We consider static, spherically symmetric solutions of 5D general relativity with magnetic fields governed by nonlinear electrodynamics (NED) with the Lagrangian , ${\ca…
Revisiting black holes in dark-matter halos: on consistent solutions to the Einstein equations
S. V. Bolokhov
A number of recent papers have claimed to construct solutions of Einstein's equations describing black holes surrounded by dark-matter halos with empirically motivated density prof…
Gravitational Quasinormal Modes and Grey-Body Factors of Bonanno-Reuter Regular Black Holes
S. V. Bolokhov, Milena Skvortsova
We study gravitational perturbations of the Bonanno--Reuter quantum-corrected black hole arising in the asymptotic safety scenario, focusing on QNMs and grey-body factors. Assuming…
Stability ranges of magnetic black holes and mirror (topological) stars in 5D gravity
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova
We discuss static, spherically symmetric solutions to the 5D Einstein-Maxwell equations (belonging to wide classes of multidimensional solutions known at least from the 1990s) and…
Review of analytic results on quasinormal modes of black holes
S. V. Bolokhov, Milena Skvortsova
We present a concise review of known analytic results for quasinormal modes of black holes and related spacetimes. Our emphasis is on those regimes where the perturbation equations…
Magnetic mirror stars in five dimensions
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova
We discuss a class of solutions of multidimensional gravity which are formally related to black-hole solutions but can observationally look like compact stars whose surface reflect…
On the stability of electrovacuum space-times in scalar-tensor gravity
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova +2
We study the behavior of static, spherically symmetric solutions to the field equations of scalar-tensor theories (STT) of gravity belonging to the Bergmann-Wagoner-Nordtvedt class…
A regular center instead of a black bounce
S. V. Bolokhov, K. A. Bronnikov, M. V. Skvortsova
The widely discussed ``black-bounce'' mechanism of removing a singularity at in a spherically symmetric space-time, proposed by Simpson and Visser, consists in removing the p…
On the stability of spherically symmetric space-times in scalar-tensor gravity
Kirill A. Bronnikov, Sergei V. Bolokhov, Milena V. Skvortsova +2
We study the linear stability of vacuum static, spherically symmetric solutions to the gravitational field equations of the Bergmann-Wagoner-Nordtvedt class of scalar-tensor theori…
Gravity assist as a test of relativistic gravity
S. V. Bolokhov, K. A. Bronnikov, M. V. Skvortsova
We consider the gravity assist maneuver, that is, a correction of spacecraft motion at its passing near a planet, as a tool for evaluating the Eddington post-Newtonian parameters $…
Spherically symmetric space-times in generalized hybrid metric-Palatini gravity
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova
We discuss vacuum static, spherically symmetric asymptotically flat solutions of the generalized hybrid metric-Palatini theory of gravity (generalized HMPG) suggested by Böhmer and…
Hybrid metric-Palatini gravity: Regular stringlike configurations
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova
We discuss static, cylindrically symmetric vacuum solutions of hybrid metric-Palatini gravity (HMPG), a recently proposed theory that has been shown to successfully pass the local…
Hybrid metric-Palatini gravity: black holes, wormholes, singularities and instabilities
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova
The hybrid metric-Palatini theory of gravity (HMPG), proposed in 2012 by T. Harko et al., is known to successfully describe both local (solar-system) and cosmological observations.…
A possible semiclassical bounce instead of a Schwarzschild singularity
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova
We have previously shown that the singularity in a Schwarzschild black hole of stellar or larger mass may be avoided in a semiclassical manner by using as a source of gravity the s…
Rotating cylinders with anisotropic fluids in general relativity
S. V. Bolokhov, K. A. Bronnikov, M. V. Skvortsova
We consider anisotropic fluids with directional pressures ( is the density, const, ) as sources of gravity in stationary cylindrically symmetric…
Cylindrical wormholes: a search for viable phantom-free models in GR
K. A. Bronnikov, S. V. Bolokhov, M. V. Skvortsova
The well-known problem of wormholes in general relativity (GR) is the necessity of exotic matter, violating the Weak Energy Condition (WEC), for their support. This problem looks e…
The Schwarzschild singularity: a semiclassical bounce?
S. V. Bolokhov, K. A. Bronnikov, M. V. Skvortsova
We discuss the opportunity that the singularity inside a Schwarzschild black hole could be replaced by a regular bounce, described as a regular minimum of the spherical radius (ins…
On cosmology in nonlinear multidimensional gravity with multiple factor spaces
S. V. Bolokhov, K. A. Bronnikov
Within the scope of multidimensional Kaluza--Klein gravity with nonlinear curvature terms and two spherical extra spaces of dimensions and , we study the properties of an ef…
Cosmology in nonlinear multidimensional gravity and the Casimir effect
S. V. Bolokhov, K. A. Bronnikov
We study the possible cosmological models in Kaluza-Klein-type multidimensional gravity with a curvature-nonlinear Lagrangian and a spherical extra space, taking into account the C…
Visible, invisible and trapped ghosts as sources of wormholes and black universes
S. V. Bolokhov, K. A. Bronnikov, P. A. Korolyov +1
We construct explicit examples of globally regular static, spherically symmetric solutions in general relativity with scalar and electromagnetic fields, describing traversable worm…
Magnetic black universes and wormholes with a phantom scalar
S. V. Bolokhov, K. A. Bronnikov, M. V. Skvortsova
We construct explicit examples of globally regular static, spherically symmetric solutions in general relativity with scalar and electromagnetic fields which describe traversable w…
Extra dimensions as a source of the electroweak model
S. V. Bolokhov, K. A. Bronnikov, S. G. Rubin
The Higgs boson of the Standard model is described by a set of off-diagonal components of the multidimensional metric tensor, as well as the gauge fields. In the low-energy limit,…