A consistent measure of the merger histories of massive galaxies using close-pair statistics I: Major mergers at $z < 3.5$

@article{Mundy2017ACM,
  title={A consistent measure of the merger histories of massive galaxies using close-pair statistics I: Major mergers at \$z < 3.5\$},
  author={Carl J. Mundy and Christopher J. Conselice and Kenneth J. Duncan and Omar Almaini and Boris Haussler and William G. Hartley},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={470},
  pages={3507-3531}
}
  • Carl J. Mundy, Christopher J. Conselice, +3 authors William G. Hartley
  • Published 2017
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We use a large sample of ∼350,000 galaxies constructed by combining the UKIDSS UDS, VIDEO/CFHT-LS, UltraVISTA/COSMOS and GAMA survey regions to probe the major merging histories of massive galaxies (>1010 M⊙) at 0.005 1010 M⊙ and at a constant number density of n>10−4 Mpc−3, and find rates a factor of 2-3 smaller than previous works, although this depends strongly on the assumed merger timescale and likelihood of a close-pair merging. Galaxies undergo approximately 0.5 major mergers at z 1011M… CONTINUE READING

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