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

@article{Ngeow2020ASF,
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},
year={2020}
}
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
2 Citations

#### Figures and Tables from this paper

Extratidal Stars and Chemical Abundance Properties of Two Metal-poor Globular Clusters M53 (NGC 5024) and NGC 5053
• Physics
• 2020
We search for extra-tidal stars around two metal-poor Galactic globular clusters, M53 and NGC 5053, using the near-infrared APOGEE spectra. Applying the t-SNE algorithm on the chemical abundances andExpand
A Low-mass Stellar-debris Stream Associated with a Globular Cluster Pair in the Halo
• Physics
• 2020
There are expected to be physical relationships between the globular clusters (GCs) and stellar substructures in the Milky Way, not all of which have yet been found. We search for such substructuresExpand

#### References

SHOWING 1-10 OF 58 REFERENCES
Search for extra-tidal RR Lyrae stars in Milky Way globular clusters from Gaia DR2
• Physics
• 2019
We used extra-tidal RR Lyrae stars to study the dynamics of Galactic globular clusters and know how effects like dynamical friction and tidal disruption affect these clusters. The Gaia DR2 catalogExpand
Searching for tidal tails around ω Centauri using RR Lyrae stars
We present a survey for RR Lyrae stars in an area of 50 deg$^2$ around the globular cluster $\omega$ Centauri, aimed to detect debris material from the alleged progenitor galaxy of the cluster. WeExpand
Radial velocities of RR Lyrae stars in and around NGC 6441
Detailed elemental abundance patterns of metal-poor ([Fe/H] ~ -1~dex) stars in the Galactic bulge indicate that a number of them are consistent with globular cluster (GC) stars and may be formerExpand
Discovery of Tidal RR Lyrae Stars in the Bulge Globular Cluster M62
• Physics
• 2018
The RR Lyrae (RRL) rich globular cluster M 62 (NGC 6266) is one of the most massive globular clusters in the Milky Way, located in the dense region of the Galactic bulge, where dynamical processesExpand
Search for extratidal features around 17 globular clusters in the Sloan Digital Sky Survey
• Physics
• 2010
Context. The dynamical evolution of a single globular cluster and also of the entire Galactic globular cluster system has been studied theoretically in detail. In particular, simulations show how theExpand
A Wide-Field Photometric Survey for Extratidal Tails Around Five Metal-Poor Globular Clusters in the Galactic Halo
Wide-field deep g'r'i' images obtained with the Megacam of the Canada-France-Hawaii Telescope are used to investigate the spatial configuration of stars around five metal-poor globular clusters M15,Expand
The QUEST RR Lyrae Survey: Confirmation of the Clump at 50 Kiloparsecs and Other Overdensities in the Outer Halo
We have measured the periods and light curves of 148 RR Lyrae variables from V = 13.5 to 19.7 from the first 100 deg2 of the Quasar Equatorial Survey Team RR Lyrae survey. Approximately 55% of theseExpand
The Blue Straggler Population in the Globular Cluster M53 (NGC 5024): A Combined HST, LBT, and CFHT Study*
We used a proper combination of high-resolution and wide-field multiwavelength observations collected at three different telescopes (HST, LBT, and CFHT) to probe the blue straggler star (BSS)Expand
Modeling the Disruption of the Globular Cluster Palomar 5 by Galactic Tides
The simulations unambiguously predict the destruction of Pal 5 at its next disk crossing in ~110 Myr, suggesting that many more similar systems could once have populated the inner parts of the Milky Way but have been transformed into debris streams by the Galactic tidal field. Expand
The tidal tails of NGC 5466
• Physics, Computer Science
• 2007
The newly discovered tidal tails of the Galactic globular cluster NGC 5466 are studied by means of numerical simulations, which reproduce the shape, direction and surface density of the tidal tails, as well as the structural and kinematical properties of the present-day NGC5466. Expand