A Search for Extra-Tidal RR Lyrae in the Globular Cluster NGC 5024 and NGC 5053

  title={A Search for Extra-Tidal RR Lyrae in the Globular Cluster NGC 5024 and NGC 5053},
  author={C. Ngeow and J. Belecki and R. Burruss and A. Drake and M. Graham and D. Kaplan and T. Kupfer and A. Mahabal and F. Masci and R. Riddle and H. Rodriguez and B. Rusholme},
  journal={arXiv: Solar and Stellar Astrophysics},
Recently, Kundu et al (2019) reported that the globular cluster NGC 5024 (M53) possesses five extra-tidal RR Lyrae. In fact, four of them were instead known members of a nearby globular cluster NGC 5053. The status of the remaining extra-tidal RR Lyrae is controversial depending on the adopted tidal radius of NGC 5024. We have also searched for additional extra-tidal RR Lyrae within an area of $\sim8$~deg$^2$ covering both globular clusters. This includes other known RR Lyrae within the search… Expand
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