Stellar mass segregation as separating classifier between globular clusters and ultra-faint dwarf galaxies

@article{Baumgardt2021StellarMS,
  title={Stellar mass segregation as separating classifier between globular clusters and ultra-faint dwarf galaxies},
  author={Holger Baumgardt and J Faller and N Meinhold and C McGovern-Greco and Michael Hilker},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2021}
}
We have determined the amount of stellar mass segregation in over 50 globular clusters and ultra-faint dwarf galaxy candidates based on deep HST and ground-based photometry. We find that the amount of mass segregation in globular clusters is strongly correlated with their relaxation time and that all clusters with relaxation times of the order of their ages or longer have little to no mass segregation. For each cluster, the amount of mass segregation seen is fully compatible with the amount… 
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References

SHOWING 1-5 OF 5 REFERENCES

Galactic dynamics Bland-Hawthorn J

  • Belokurov V. et al.,
  • 2015

Dynamical evolution of globular

  • MNRAS,
  • 2018

References for distances, structural and photometric parameters: 1)

  • 2019

Dynamical evolution of globular clusters Stetson P

  • MNRAS
  • 1987

Galactic dynamics Bland

  • ApJ
  • 1987