Bumblebee black holes in light of Event Horizon Telescope observations

Abstract

We report the existence of novel static spherical black-hole solutions in a vector-tensor gravitational theory called the bumblebee gravity model which extends the Einstein-Maxwell theory by allowing the vector to nonminimally couple to the Ricci curvature tensor. A test of the solutions in the strong-field regime is performed for the first time using the recent observations of the supermassive black-hole shadows in the galaxy M87 and the Milky Way from the Event Horizon Telescope Collaboration. The parameter space is found largely unexcluded and more experiments are needed to fully bound the theory.

7 pages, 3 figures

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Cited by in corpus (29)

• Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A${}^{\ast }$
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• Electrically charged black holes in gravity with a background Kalb-Ramond field
• Extended thermodynamics of the bumblebee black holes
• Static neutral black holes in Kalb-Ramond gravity
• Lorentz violation alleviates gravitationally induced entanglement degradation
• Exploring antisymmetric tensor effects on black hole shadows and quasinormal frequencies
• Probing the Lorentz Invariance Violation via Gravitational Lensing and Analytical Eigenmodes of Perturbed Slowly Rotating Bumblebee Black Holes
• Quasinormal Modes and Bounding Greybody Factors of GUP-corrected Black Holes in Kalb-Ramond Gravity
• How does non-metricity affect particle creation and evaporation in bumblebee gravity?
• Shadow of slowly rotating Kalb-Ramond black holes
• Harvesting correlations from BTZ black hole coupled to a Lorentz-violating vector field
• Testing EGB gravity coupled to bumblebee field and black hole parameter estimation with EHT observations
• Particle creation and evaporation in Kalb-Ramond gravity
• The impact of an antisymmetric tensor on charged black holes: evaporation process, geodesics, deflection angle, scattering effects and quasinormal modes
• Lorentz violation induces isospectrality breaking in Einstein-Bumblebee gravity theory
• Observational signature of Lorentz violation in acceleration radiation
• Dynamic instability analysis for bumblebee black holes: the odd parity
• Influence of a Kalb-Ramond black hole on neutrino behavior
• Neutron stars in the bumblebee theory of gravity
• Quasinormal Modes, Grebody Factors, and Hawking Radiation Sparsity of Black Holes Influenced by a Global Monopole Charge in Kalb-Ramond Gravity
• Particle motion and thermal effects around a Kalb-Ramond black hole
• Probing the vector charge of Sagittarius A* with pulsar timing
• Bumblebee gravity: spherically-symmetric solutions away from the potential minimum
• Full Classification of Static Spherical Vacuum Solutions to Bumblebee Gravity with General VEVs
• Prospects for probing small-scale dark matter models with pulsars around Sagittarius A*
• Exact Taub-NUT-like Black Holes in Einstein-bumblebee gravity: their thermodynamics and thermodynamic topology
• Lorentz-violating modifications to particle dynamics, thermodynamics and vacuum energy in bumblebee gravity
• Effects of bumblebee gravity on neutrino motion