Stellar Dynamics in the Central Arcsecond of Our Galaxy

  title={Stellar Dynamics in the Central Arcsecond of Our Galaxy},
  author={Rainer Schoedel and Thomas Ott and Reinhard Genzel and Andreas Eckart and Nelly Mouawad and Tal Alexander},
  journal={The Astrophysical Journal},
  pages={1015 - 1034}
With 10 years of high-resolution imaging data now available on the stellar cluster in the Galactic center, we present proper motions for more than 40 stars at projected distances ≤1.″2 from Sagittarius A* (Sgr A*). We find evidence on a ≥2 σ level for radial anisotropy of the cluster of stars within 1'' of Sgr A*. For a brightness limit of K ~ 15.5, we find no evidence for a stationary source at the position of Sgr A* or for a source at this position that would be variable on a timescale of at… 


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