DIFFUSE TIDAL STRUCTURES IN THE HALOS OF VIRGO ELLIPTICALS

@article{Janowiecki2010DIFFUSETS,
  title={DIFFUSE TIDAL STRUCTURES IN THE HALOS OF VIRGO ELLIPTICALS},
  author={Steven Janowiecki and J. Christopher Mihos and Paul Harding and John J. Feldmeier and Craig S. Rudick and Heather L. Morrison},
  journal={The Astrophysical Journal},
  year={2010},
  volume={715},
  pages={972 - 985}
}
We use deep V-band surface photometry of five of the brightest elliptical galaxies in the Virgo Cluster to search for diffuse tidal streams, shells, and plumes in their outer halos (r>50 kpc). We fit and subtract elliptical isophotal models from the galaxy images to reveal a variety of substructure, with surface brightnesses in the range μV = 26–29 mag arcsec−2. M49 possesses an extended, interleaved shell system reminiscent of the radial accretion of a satellite companion, while M89's complex… 

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