The Absolute Proper Motion of Palomar 12: A Case for Tidal Capture from the Sagittarius Dwarf Spheroidal Galaxy

@article{Dinescu2000TheAP,
  title={The Absolute Proper Motion of Palomar 12: A Case for Tidal Capture from the Sagittarius Dwarf Spheroidal Galaxy},
  author={D. Dinescu and S. Majewski and T. Girard and K. Cudworth},
  journal={The Astronomical Journal},
  year={2000},
  volume={120},
  pages={1892-1905}
}
  • D. Dinescu, S. Majewski, +1 author K. Cudworth
  • Published 2000
  • Physics
  • The Astronomical Journal
  • We have measured the absolute proper motion of the young globular cluster Pal 12 with respect to background galaxies, using plate material spanning a 40 yr time baseline, and measuring stars down to a magnitude V ~ 22. The measured absolute proper motion has an uncertainty of 0.3 mas yr-1 in each coordinate. Pal 12's young age for a globular cluster led to the hypothesis that the cluster originated in the Large Magellanic Cloud (LMC) and was later captured by the Milky Way (Lin & Richer). Here… CONTINUE READING
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