Testing the nature of dark compact objects: a status report

  title={Testing the nature of dark compact objects: a status report},
  author={Vitor Cardoso and Paolo Pani},
  journal={Living Reviews in Relativity},
Very compact objects probe extreme gravitational fields and may be the key to understand outstanding puzzles in fundamental physics. These include the nature of dark matter, the fate of spacetime singularities, or the loss of unitarity in Hawking evaporation. The standard astrophysical description of collapsing objects tells us that massive, dark and compact objects are black holes. Any observation suggesting otherwise would be an indication of beyond-the-standard-model physics. Null results… 
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Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum
  • D. Psaltis
  • Physics
    Living reviews in relativity
  • 2008
The prospect of using observations of such compact objects to probe some of the most intriguing general relativistic predictions in the strong-field regime: the absence of stable circular orbits near a compact object and the presence of event horizons around black-hole singularities is reviewed.
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