A possible formation scenario for the ultramassive cluster W3 in NGC 7252

@article{Fellhauer2005APF,
  title={A possible formation scenario for the ultramassive cluster W3 in NGC 7252},
  author={Michael Fellhauer and Pavel Kroupa},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2005},
  volume={359},
  pages={223-227}
}
The intermediate age star cluster W3 (age � 300‐500 Myr) in NGC 7252 is the most luminous star cluster known to date with a dynamical mass estimate of 8±2·10 7 M⊙. With an effective radius of about 17.5 pc and a velocity dispersion of 45 kms −1 this object may be viewed as one of the recently discovered ultra-compact dwarf galaxies (UCDs). Its intermediate age, however, precludes an origin as a stripped nucleated dwarf elliptical galaxy. The galaxy NGC 7252 is a merger remnant from two gas-rich… 
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References

SHOWING 1-10 OF 23 REFERENCES
The dynamical evolution of stellar superclusters
Recent images taken with the Hubble Space Telescope (HST) of the interacting disc galaxies NGC 4038/4039 (the Antennae) reveal clusters of many dozens and possibly hundreds of young compact massive…
The formation of ultracompact dwarf galaxies
Recent spectroscopic observations of galaxies in the Fornax Cluster reveal nearly unresolved 'star-like' objects with redshifts appropriate to the Fornax Cluster. These objects have intrinsic sizes…
Merging Timescales and Merger Rates of Star Clusters in Dense Star Cluster Complexes
Interacting galaxies like the famous Antennae (NGC 4038/4039) or Stephan's Quintet (HCG 92) show considerable star forming activity in their tidal arms. High resolution images (e.g. from…
The central region of the Fornax cluster - III. Dwarf galaxies, globular clusters, and cD halo – are there interrelations?
In this paper we briefly review the properties of the dwarf galaxy population at the core of the Fornax cluster, as well as the properties of the extraordinary rich globular cluster system and the cD…
The Mass Function of Young Star Clusters in the "Antennae" Galaxies.
  • Zhang, Fall
  • Physics
    The Astrophysical journal
  • 1999
TLDR
The mass function of the young star clusters in the merging galaxies known as the "Antennae" (NGC 4038/9) is found to be well represented by a power law of the form psi&parl0;M&parr0;~M-2 over the range 104 less, similarMLess, similar106 M middle dot in circle.
A Universal Formation Mechanism for Open and Globular Clusters in Turbulent Gas
A universal mechanism for cluster formation in all epochs and environments is found to be consistent with the properties and locations of young and old globular clusters, open clusters and unbound…
Galaxy threshing and the origin of ultra-compact dwarf galaxies in the Fornax cluster
A recent all-object spectroscopic survey centred on the Fornax cluster of galaxies has discovered a population of subluminous and extremely compact members, called 'ultra-compact dwarf' (UCD)…
The Possible Origin of the Faint Fuzzy Star Clusters in NGC 1023
In the lenticular galaxy NGC 1023 a new population of star clusters ("faint fuzzies") was recently discovered by Larsen & Brodie. These clusters are found inside the disk and are faint (23 ≤ V ≤ 24…
Hubble Space Telescope Observations of Star Clusters in NGC 1023: Evidence for Three Cluster Populations?*
Using Hubble Space Telescope images we have carried out a study of cluster populations in the nearby S0 galaxy NGC 1023. In two WFPC2 pointings we have identified 221 cluster candidates. The small…
The Luminosity Function of Young Star Clusters in
The Wide Field Planetary Camera 2 of the Hubble Space Telescope has been used to obtain high-resolution images of NGC 4038/4039 that go roughly 3 mag deeper in V than previous observations made…
...
1
2
3
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