Testing the General Relativistic “No-Hair” Theorems Using the Galactic Center Black Hole Sagittarius A*

@article{Will2008TestingTG,
  title={Testing the General Relativistic “No-Hair” Theorems Using the Galactic Center Black Hole Sagittarius A*},
  author={Clifford M. Will},
  journal={The Astrophysical Journal Letters},
  year={2008},
  volume={674},
  pages={L25 - L28}
}
  • C. Will
  • Published 11 November 2007
  • Physics
  • The Astrophysical Journal Letters
If a class of stars orbits the central black hole in our galaxy in short-period (~0.1 yr), high-eccentricity (~0.9) orbits, they will experience precessions of their orbital planes induced by both relativistic frame dragging and the quadrupolar gravity of the hole, at levels that could be as large as 10 μas per year, if the black hole is rotating faster than half of its maximum rotation rate. Astrometric observations of the orbits of at least two such stars can in principle lead to a… 
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162 Citations

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