The Origin of Faint Tidal Features around Galaxies in the RESOLVE Survey

@article{Hood2018TheOO,
  title={The Origin of Faint Tidal Features around Galaxies in the RESOLVE Survey},
  author={Callie E. Hood and Sheila J. Kannappan and David V. Stark and Ian P. Dell’Antonio and Amanda J. Moffett and Kathleen D. Eckert and Mark A. Norris and David Hendel},
  journal={The Astrophysical Journal},
  year={2018},
  volume={857}
}
We study tidal features around galaxies in the REsolved Spectroscopy Of a Local VolumE (RESOLVE) survey. Our sample consists of 1048 RESOLVE galaxies that overlap with the DECam Legacy Survey, which reaches an r-band 3σ depth of ∼27.9 mag arcsec−2 for a 100 arcsec2 feature. Images were masked, smoothed, and inspected for tidal features such as streams, shells, or tails/arms. We find tidal features in 17±2% of our galaxies, setting a lower limit on the true frequency. The frequency of tidal… 

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