Hunting for extra dimensions in the shadow of M87

  title={Hunting for extra dimensions in the shadow of M87},
  author={S. Vagnozzi and L. Visinelli},
  journal={arXiv: General Relativity and Quantum Cosmology},
  • S. Vagnozzi, L. Visinelli
  • Published 2019
  • Physics
  • arXiv: General Relativity and Quantum Cosmology
  • The Event Horizon Telescope has recently provided the first image of the dark shadow around the supermassive black hole M87*. The observation of a highly circular shadow provides strong limits on deviations of M87*'s quadrupole moment from the Kerr value. We show that the absence of such a deviation can be used to constrain the physics of extra dimensions of spacetime. Focusing on the Randall-Sundrum AdS$_5$ brane-world scenario, we show that the observation of M87*'s dark shadow sets the limit… CONTINUE READING
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