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IPM
30
YEARS OLD

“School of Astronomy”

Paper   IPM / Astronomy / 15841
   School of Astronomy
  Title: Nonlocal Gravitomagnetism
  Author(s):
1 . Bahram . Mashhoon
2 . Friedrich . W. Hehl
  Status: Published
  Journal: Universe
  Vol.: 5
  Year: 2019
  Supported by:           ipm IPM
  Abstract:
We briefly review the current status of nonlocal gravity (NLG), which is a classical nonlocal generalization of Einstein's theory of gravitation based on a certain analogy with the nonlocal electrodynamics of media. Nonlocal gravity thus involves integro-differential field equations and a causal constitutive kernel that should ultimately be determined from observational data. We consider the stationary gravitational field of an isolated rotating astronomical source in the linear approximation of nonlocal gravity. In this weak-field and slow-motion approximation of NLG, we describe the gravitomagnetic field associated with the rotating source and compare our results with gravitoelectromagnetism (GEM) of the standard general relativity theory. Moreover, we briefly study the energy-momentum content of the GEM field in nonlocal gravity.

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