The merger history of massive spheroids since z~1 is size independent

@article{DiazGarcia2013TheMH,
  title={The merger history of massive spheroids since z~1 is size independent},
  author={Luis A. D'iaz-Garc'ia and Esther M'armol-Queralt'o and Ignacio Trujillo and A. J. Cenarro and Carlos L'opez-Sanjuan and Pablo G. P'erez-Gonz'alez and Guillermo Barro},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={433},
  pages={60-68}
}
Using a compilation of 379 massive (stellar mass M ≳ 10^11 M_⊙) spheroid-like galaxies from the near-infrared Palomar/DEEP-2 survey, we investigated, up to z ∼ 1, whether the presence of companions depends on the size of the host galaxy. We explored the presence of companions for mass ratios with respect to the central massive galaxy down to 1 : 10 and 1 : 100, and within projected distances of 30, 50 and 100 kpc of these objects. We found evidence that these companions are equally distributed… Expand

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