Shadows and precession of orbits in rotating Janis-Newman-Winicour spacetime

Abstract

In this paper, we construct the rotating Janis-Newman-Winicour (JNW) naked singularity spacetime using Newman-Janis Algorithm (NJA). We analyse NJA with and without complexification methods and find that the energy conditions do satisfied when we skip the complexification step. We study the shadows cast by rotating JNW naked singularity and compare them with the shadows cast by the Kerr black hole. We find that the shadow of the rotating naked singularity can be distinguished from the shadow of the Kerr black hole. While we analyse the precession of timelike bound orbits in rotating JNW spacetime, we find that it can have a negative (or opposite) precession, which is not present in the Kerr black hole case. These novel signatures of the shadow and orbital precession in rotating JNW naked singularity spacetime could be important in the context of the recent observation of the shadow of the M87 galactic center and the stellar dynamics of `S-stars' around Milkyway galactic center.

arXiv comment14 pages, 13 figures

References in corpus (53)

• Black Hole Shadows, Photon Rings, and Lensing Rings
• Relativistic redshift of the star S0-2 orbiting the Galactic center supermassive black hole
• Generating rotating regular black hole solutions without complexification
• Hunting for extra dimensions in the shadow of M87*
• Naked Singularities in Spherically Symmetric Inhomogeneous Tolman-Bondi Dust Cloud Collapse
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Zoom & Whirl: Eccentric equatorial orbits around spinning black holes and their evolution under gravitational radiation reaction
• Shadows of spherically symmetric black holes and naked singularities
• Testing General Relativity with stellar orbits around the supermassive black hole in our Galactic center
• Shadow of five-dimensional rotating Myers-Perry black hole
• Optical properties of black hole in the presence of plasma: shadow
• A coordinate-independent characterization of a black hole shadow
• Shadow and Deflection Angle of Rotating Black Holes in Perfect Fluid Dark Matter with a Cosmological Constant
• Shadow cast and Deflection angle of Kerr-Newman-Kasuya spacetime
• Parameter estimation of hairy Kerr black holes from its shadow and constraints from M87*
• Wormhole Shadows
• Black hole shadow in a general rotating spacetime obtained through Newman-Janis algorithm
• From static to rotating to conformal static solutions: Rotating imperfect fluid wormholes with(out) electric or magnetic field
• An explanation of the Newman-Janis Algorithm
• Equilibrium configurations from gravitational collapse
• Black hole mimicker hiding in the shadow: Optical properties of the $\gamma$-metric
• QED Effect on Black Hole Shadow
• Complete analytic solution of the geodesic equation in Schwarzschild--(anti) de Sitter space--times
• Gravastar Shadows
• Equatorial circular motion in Kerr spacetime
• Image of the Janis-Newman-Winicour naked singularity with a thin accretion disk
• Energetics and optical properties of $6$-dimensional rotating black hole in pure Gauss-Bonnet gravity
• Equatorial circular orbits of neutral test particles in the Kerr--Newman spacetime
• Shadow of a Naked Singularity without Photon Sphere
• Shadows and rings of the Kehagias-Sfetsos black hole surrounded by thin disk accretion
• Shadows of parametrized axially symmetric black holes allowing for separation of variables
• Regular and conformal regular cores for static and rotating solutions
• Motion of spinning test bodies in Kerr spacetime
• Timelike geodesics in Naked Singularity and Black Hole Spacetimes
• Ergosphere and shadow of a rotating regular black hole
• Analytic solutions of the geodesic equation in axially symmetric space-times
• The Application of the Newman-Janis Algorithm in Obtaining Interior Solutions of the Kerr Metric
• Shadows and negative precession in non-Kerr spacetime
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• Black hole shadow of a rotating polytropic black hole by the Newman--Janis algorithm without complexification
• Strong curvature naked singularities in spherically symmetric perfect fluid collapse
• Perihelion Precession and Shadows near Blackholes and Naked Singularities
• Towards an observational test of black hole versus naked singularity at the galactic center
• Global visibility of a strong curvature singularity in nonmarginally bound dust collapse
• Comment on `Spinning loop black holes' [arXiv:1006.0232]
• Astrophysics of Bertrand Space-times
• Globally visible singularity in an astrophysical setup
• Bound orbits near scalar field naked singularities
• Galactic Dark Matter and Bertrand Space-times
• Geodesic Structure of Naked Singularities in AdS${}_3$ Spacetime
• Timelike Geodesics in Naked Singularity and Black Hole Spacetimes II
• Comparing Shadows of Blackhole and Naked Singularity
• Shadow cast by a rotating black hole with anisotropic matter

Cited by in corpus (14)

• Superradiant evolution of the shadow and photon ring of Sgr A${}^{\star }$
• Light trajectory and shadow shape in the rotating naked singularity
• Precession and Lense-Thirring effect of hairy Kerr spacetimes
• Energy extraction from Janis-Newman-Winicour naked singularity
• Toward General-Relativistic Magnetohydrodynamics Simulations in Stationary Non-Vacuum Spacetimes
• Imaging ultra-compact objects with radiatively inefficient accretion flows
• Relativistic time delay analysis of pulsar signals near ultra-compact objects
• Modelling the Sgr A${}^{\ast }$ and M87${}^{\ast }$ shadows by using the Kerr-Taub-NUT metrics in the presence of a scalar field
• A class of charged-Taub-NUT-scalar metrics via Harison and Ehlers Transformations
• Retrograde Precession of Relativistic Orbits and the Quest for Charged Black Holes
• Nonspherically-symmetric black hole in Einstein-massless scalar theory
• Photon surfaces, shadows and accretion disks in gravity with minimally coupled scalar field
• Photon Ring Dimming as a Signature of Photon-Axion Conversion in Janis-Newman-Winicour Naked Singularity
• Optical appearance of regularized compact objects without an exterior photon sphere