A new formation model for M32: a threshed early-type spiral galaxy?

  title={A new formation model for M32: a threshed early-type spiral galaxy?},
  author={Kenji Bekki and Warrick J. Couch and Michael J Drinkwater and Michael D. Gregg},
  journal={The Astrophysical Journal},
The origin of M32, the closest compact elliptical galaxy (cE), is a long-standing puzzle of galaxy formation in the Local Group. Our N-body/smoothed particle hydrodynamics simulations suggest a new scenario in which the strong tidal field of M31 can transform a spiral galaxy into a compact elliptical galaxy. As a low-luminosity spiral galaxy plunges into the central region of M31, most of the outer stellar and gaseous components of its disk are dramatically stripped as a result of M31's tidal… Expand

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