Stellar orbits near Sagittarius A

@article{Eckart2001StellarON,
  title={Stellar orbits near Sagittarius A},
  author={Andreas Eckart and Reinhard Genzel and Thomas Ott and Rainer Schoedel},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2001},
  volume={331},
  pages={917-934}
}
The SHARP/NTT stellar proper motion data now cover an interval from 1992 to 2000 and allow us to determine orbital accelerations for some of the most central stars of the Galaxy. We confirm the stellar acceleration measurements obtained by Ghez et al. with NIRC at the Keck telescope. Our analysis differs in three main points from that of Ghez et al.: (1) we combine the high-precision but shorter time-scale NIRC/Keck data with the lower precision but longer time-scale SHARP/NTT data set; (2) we… 

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