Non-localizability of electric coupling and gravitational binding of charged objects

@article{Corne2007NonlocalizabilityOE,
  title={Non-localizability of electric coupling and gravitational binding of charged objects},
  author={Matthew Corne and Arkady Kheyfets and Warner A. Miller},
  journal={Classical and Quantum Gravity},
  year={2007},
  volume={24},
  pages={5999 - 6005}
}
The energy–momentum tensor in general relativity contains only localized contributions to the total energy–momentum. Here, we consider a static, spherically symmetric object consisting of a charged perfect fluid. For this object, the total gravitational mass contains a non-localizable contribution of electric coupling (ordinarily associated with electromagnetic mass). We derive an explicit expression for the total mass which implies that the non-localizable contribution of electric coupling is… 
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