The Astrophysical Journal (Jan 2023)

Bumblebee Black Holes in Light of Event Horizon Telescope Observations

  • Rui Xu,
  • Dicong Liang,
  • Lijing Shao

DOI
https://doi.org/10.3847/1538-4357/acbdfb
Journal volume & issue
Vol. 945, no. 2
p. 148

Abstract

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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 bind the theory.

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