• Corpus ID: 119126192

A proper motion study of the globular clusters M4, M12, M22, NGC 3201, NGC 6362 and NGC 6752

@article{Zoczewski2012APM,
  title={A proper motion study of the globular clusters M4, M12, M22, NGC 3201, NGC 6362 and NGC 6752},
  author={K. Złoczewski and Janusz Kaluzny and M. Rozyczka and Wojtek Krzemiński and Beata Mazur and Ian B. Thompson},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2012}
}
We derive relative proper motions of stars in the fields of globular clusters M4, M12, M22, NGC 3201, NGC 6362 and NGC 6752 based on a uniform data set collected between 1997 and 2008. We assign a membership class for each star with a measured proper motion, and show that these membership classes can be successfully used to eliminate field stars from color-magnitude diagrams of the clusters. They also allow for the efficient selection of rare objects such as blue/yellow/red stragglers and stars… 

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