The Circumgalactic Environment of Bright IRAS Galaxies

  title={The Circumgalactic Environment of Bright IRAS Galaxies},
  author={Yair Krongold and Dultzin-Hacyan and P. Marziani Instituto de Astronom'ia and Unam Osservatorio Astronomico di Padova},
  journal={The Astrophysical Journal},
This paper systematically studies, for the first time, the circumgalactic environment of bright IRAS galaxies as defined in 1989 by Soifer and coworkers. While the role of gravitational interaction for luminous and ultraluminous IRAS galaxies has been well established by various studies, the situation is by far more obscure in the IR luminosity range of the bright IRAS sample, 1010 L☉ LFIR 1011 L☉. To easily identify nearby companion galaxies, the bright IRAS sample is restricted to 87 objects… 

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