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- Title
Testing general relativity with the Event Horizon Telescope.
- Authors
Psaltis, Dimitrios
- Abstract
The Event Horizon Telescope is a millimeter VLBI array that is taking the first horizon-scale pictures of the black hole in the center of the M87 galaxy and, in the near future, of the one in the center of the Milky Way. Measurements of the shape and size of the shadows cast by the black holes on the surrounding emission can test the cosmic censorship conjecture and the no-hair theorem and may find evidence for classical effects of the quantum structure of black holes. Observations of coherent structures in the accretion flows may lead to accurate measurements of the spins of the black holes and of other properties of their spacetimes. For Sgr A*, the black hole in the center of the Milky Way, measurements of the precession of stellar orbits and timing monitoring of orbiting pulsars offer complementary avenues to the gravitational tests with the Event Horizon Telescope.
- Subjects
STELLAR orbits; BLACK holes; SCHWARZSCHILD black holes; EVENT Horizon Telescope; MILKY Way; GENERAL relativity (Physics); ACCRETION (Astrophysics)
- Publication
General Relativity & Gravitation, 2019, Vol 51, Issue 10, pN.PAG
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-019-2611-5