The Extended Tidal Tails of NGC 7089 (M2)

@article{Grillmair2022TheET,
  title={The Extended Tidal Tails of NGC 7089 (M2)},
  author={Carl J. Grillmair},
  journal={The Astrophysical Journal},
  year={2022},
  volume={929}
}
  • C. Grillmair
  • Published 8 March 2022
  • Physics
  • The Astrophysical Journal
Using photometry and proper motions from Gaia Early Data Release 3, we detect a 45° long trailing stellar debris stream associated with the old, metal-poor globular cluster NGC 7089. With a width on the order of 100 pc, the extended stream appears to be as dynamically cold as the coldest known streams found to date. There is some evidence for an extended leading tail extending between 28° and 37° from the cluster, though the greater distance of this tail, combined with proper motions that are… 

References

SHOWING 1-10 OF 42 REFERENCES
Detection of a 50° long Trailing Tidal Tail for the Globular Cluster M5
Using photometry and proper motions from Gaia Data Release 2, we detect a 50° long stream of about 70 stars extending westward from the halo globular cluster M5. Based on the similarities in
KINEMATICS OF THE TIDAL DEBRIS OF THE GLOBULAR CLUSTER PALOMAR 5
This paper presents the first observational study of the kinematics of debris from a disrupting globular cluster. Seventy-four bright member candidates of the tidal stream of the cluster Palomar 5,
The present and future mass of the Milky Way halo
A simple model for the Milky Way halo is presented. It has a flat rotation curve in the inner regions, but the density falls off sharply beyond an outer edge. This truncated, flat rotation curve (TF)
Detection of Massive Tidal Tails around the Globular Cluster Pal 5 with SDSS Commissioning Data
We report the discovery of two well-defined tidal tails emerging from the sparse remote globular cluster Palomar 5. These tails stretch out symmetrically to both sides of the cluster in the direction
A Matched-Filter Analysis of the Tidal Tails of the Globular Cluster Palomar 5
The tidal tails of the globular cluster Palomar 5 are analyzed over a 41 deg2 area of the Sloan Digital Sky Survey photometric catalogs. The matched filter algorithm provides the maximum possible
Globular clusters with tidal tails: deep two-color star counts
We examine the outer structure of 12 Galactic globular clusters using star-count analyses. Deep, two-color, photographic photometry is used to select and count stars with colors and magnitudes
Proper motions and dynamics of the Milky Way globular cluster system fromGaiaDR2
  • E. Vasiliev
  • Physics
    Monthly Notices of the Royal Astronomical Society
  • 2019
We use Gaia Data Release 2 to determine the mean proper motions for 150 Milky Way globular clusters (almost the entire known population), with a typical uncertainty of 0.05 mas/yr limited mainly by
Measuring the Mass of the Large Magellanic Cloud with Stellar Streams Observed by S 5
Stellar streams are excellent probes of the underlying gravitational potential in which they evolve. In this work, we fit dynamical models to five streams in the Southern Galactic hemisphere,
The devil is in the tails: the role of globular cluster mass evolution on stream properties
We present a study of the effects of collisional dynamics on the formation and detectability of cold tidal streams. A semi-analytical model for the evolution of the stellar mass function was
More on the structure of tidal tails
We investigate the epicyclic motion of stars escaping from star clusters. Using streaklines, we visualise the path of escaping stars and show how epicyclic motion leads to over- and underdensities in
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