Hunting extra dimensions in the shadow of Sgr A*

Abstract

We show that the observed angular diameter of the shadow of the ultra compact object Sgr A*, favours the existence of an extra spatial dimension. This holds irrespective of the nature of the ultra compact object, i.e., whether it is a wormhole or, a black hole mimicker, but with the common feature that both of them have an extra dimensional origin. This result holds true for the mass and the distance measurements of Sgr A* using both Keck and the Gravity collaborations and whether we use the observed image or, the observed shadow diameter. In particular, the central value of the observed shadow or, the observed image diameter predicts non-zero hairs inherited from the extra dimensions.

v2, published version, 12 pages, 4 figures

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Cited by in corpus (26)

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• Black hole surrounded by the pseudo-isothermal dark matter halo
• Echoes from braneworld wormholes
• Shadow of regular black hole in scalar-tensor-vector gravity theory
• Shadows and photon rings of a spherically accreting Kehagias-Sfetsos black hole
• Galactic wormholes: Geometry, stability, and echoes
• Signatures of the accelerating black holes with a cosmological constant from the ${\text{Sgr A}}^{\star }$ and ${\text{M87}}^{\star }$ shadow prospects
• Deflection angle, quasinormal modes and optical properties of a de Sitter black hole in $f(\mathcal{T},\mathcal{B})$ gravity
• Gravitational atoms in the braneworld scenario
• Braneworld Black Bounce to Transversable Wormhole
• Hunting for extra dimensions in black hole shadows
• Shadows and parameter estimation of rotating quantum corrected black holes and constraints from EHT observation of M87* and Sgr A*
• Influence of Quantum Correction on Kerr Black Hole in Effective Loop Quantum Gravity via Shadows and EHT Results
• Transition from inspiral to plunge for braneworld EMRI
• Leakage of gravitational waves into an extra dimension in the DGP model
• New rotating Lorentzian wormhole spacetime
• Probing charge of compact objects with gravitational microlensing of gravitational waves
• Traces of quantum fuzziness on the black hole shadow and particle deflection in the multi-fractional theory of gravity
• Probing black hole `charge' from the binary black hole inspiral
• Shadow of higher dimensional collapsing dark star and blackhole
• A way of decoupling the gravitational bulk field equations of regular braneworld black holes to suppress the bulk singularities
• Localized five-dimensional rotating brane-world black hole Analytically Connected to an to an AdS${}_5$ boundary
• Optical appearance of regularized compact objects without an exterior photon sphere
• Shadow of a Noncommutative Thin-Shell Gravastar