A systematic search for galaxy proto-cluster cores at z ∼ 2

@article{Ando2020ASS,
  title={A systematic search for galaxy proto-cluster cores at z ∼ 2},
  author={Makoto Ando and Kazuhiro Shimasaku and Rieko Momose},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020}
}
A proto-cluster core is the most massive dark matter halo (DMH) in a given proto-cluster. To reveal the galaxy formation in core regions, we search for proto-cluster cores at z ∼ 2 in ${\sim}1.5\, \mathrm{deg}^{2}$ of the COSMOS field. Using pairs of massive galaxies [log (M*/M⊙) ≥ 11] as tracers of cores, we find 75 candidate cores, among which 54 per cent are estimated to be real. A clustering analysis finds that these cores have an average DMH mass of $2.6_{-0.8}^{+0.9}\times 10^{13… 
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