The optical morphologies of the 2 Jy sample of radio galaxies: evidence for galaxy interactions

  title={The optical morphologies of the 2 Jy sample of radio galaxies: evidence for galaxy interactions},
  author={Cristina Ramos Almeida and Clive Tadhunter and Katherine J. Inskip and Raffaella Morganti and Joanna Holt and Daniel Dicken},
  journal={Monthly Notices of the Royal Astronomical Society},
We present deep Gemini Multi-Object Spectrograph South (GMOS-S)/Gemini optical broad-band images for a complete sample of 46 southern 2 Jy radio galaxies at intermediate redshifts (0.05 <z <0.7). Based on them, we discuss the role of galaxy interactions in the triggering of powerful radio galaxies (PRGs). The high-quality observations presented here show for the first time that the overall majority of PRGs at intermediate redshifts (78-85 per cent) show peculiarities in their optical… 

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