• DOI:10.1093/mnras/stu095
• Corpus ID: 55186555

The SLUGGS survey: new evidence for a tidal interaction between the early type galaxies NGC 4365 and NGC 4342

@article{Blom2014TheSS,
  title={The SLUGGS survey: new evidence for a tidal interaction between the early type galaxies NGC 4365 and NGC 4342},
  author={Christina Blom and Duncan A. Forbes and Caroline Foster and Aaron J. Romanowsky and Jean P. Brodie},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={439},
  pages={2420-2431}
}

• Christina Blom, D. Forbes, +2 authors J. Brodie
• Published 20 January 2014
• Physics
• Monthly Notices of the Royal Astronomical Society

We present new imaging and spectral data for globular clusters (GCs) around NGC 4365 and NGC 4342. NGC 4342 is a compact, X-ray luminous S0 galaxy with an unusually massive central black hole. NGC 4365 is another atypical galaxy that dominates the W ' group of which NGC 4342 is a member. Using imaging from the MegaCam instrument on the Canada-France-Hawaii Telescope (CFHT) we identify a stream of GCs between the two galaxies and extending beyond NGC 4342. The stream of GCs is spatially coincident with a stream/plume of stars previously identified. We find that the photometric colours of the stream GCs match those associated with NGC 4342, and that the recession velocity of the combined GCs from the stream and NGC 4342 match the recession velocity for NGC 4342 itself. These results suggest that NGC 4342 is being stripped of GCs (and stars) as it undergoes a tidal interaction with the nearby elliptical galaxy NGC 4365. We compare NGC 4342 to two well-known, tidally stripped galaxies (M32 and NGC 4486B) and find various