Galaxy interactions in IllustrisTNG-100, I: The power and limitations of visual identification

@inproceedings{Blumenthal2019GalaxyII,
  title={Galaxy interactions in IllustrisTNG-100, I: The power and limitations of visual identification},
  author={Kelly Blumenthal and Jorge Moreno and Joshua E. Barnes and Lars Hernquist and Paul Torrey and Zachary R. Claytor and Vicente Rodriguez-Gomez and Federico Marinacci and Mark Vogelsberger},
  year={2019}
}
  • Kelly Blumenthal, Jorge Moreno, +6 authors Mark Vogelsberger
  • Published 2019
  • Physics
  • We present a sample of 446 galaxy pairs constructed using the cosmological simulation IllustrisTNG-100 at z = 0, with M$_{FoF, dm}$ = 10$^{11}$-10$^{13.5}$ M$_{\odot}$. We produce ideal mock SDSS g-band images of all pairs to test the reliability of visual classification schema employed to produce samples of interacting galaxies. We visually classify each image as interacting or not based on the presence of a close neighbour, the presence of stellar debris fields, disturbed discs, and/or tidal… CONTINUE READING

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