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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References
SHOWING 1-10 OF 98 REFERENCES
Galaxy Proto-Cluster Cores at z ∼
- 2017
The Roles of Mass and Environment in the Quenching of Galaxies. II.
- Physics
- 2020
We take advantage of an analytic model of galaxy formation coupled to the merger tree of an N-body simulation to study the roles of environment and stellar mass in the quenching of galaxies. The…
Spectroscopic confirmation of a mature galaxy cluster at a redshift of 2
- PhysicsNature
- 2020
Optical spectroscopic observations of XLSSC 122 are reported and photometry is used to determine a mean, dust-free stellar age of 2.98 billion years, indicating that star formation commenced in these galaxies at a mean redshift of 12, when the Universe was only 370 million years old.
Large-scale Structures in the CANDELS Fields: The Role of the Environment in Star Formation Activity
- PhysicsThe Astrophysical Journal
- 2020
We present a robust method, weighted von Mises kernel density estimation, along with boundary correction to reconstruct the underlying number density field of galaxies. We apply this method to…
The Roles of Mass and Environment in the Quenching of Galaxies
- PhysicsThe Astrophysical Journal
- 2020
We study the roles of stellar mass and environment in quenching the star formation activity of a large set of simulated galaxies by taking advantage of an analytic model coupled to the merger tree…
Statistical analysis of catalogs of extragalactic objects. VII. Two- and three-point correlation functions for the high-resolution Shane-Wirtanen catalog of galaxies
- Physics
- 1977
We present estimates of the two- and three-point angular correlation functions for the high-resolution (10') Shane-Wirtanen catalog of galaxies. Special attention is given to statistical corrections…
Galaxy morphology in rich clusters: Implications for the formation and evolution of galaxies
- Physics
- 1980
A study of the galaxy populations in 55 rich clusters is presented together with a discussion of the implications for the formation and/or evolution of different morphological types. A well-defined…
Bias and variance of angular correlation functions
- Mathematics
- 1993
We present a general method for calculating the bias and variance of estimators for w(θ) based on galaxy-galaxy (DD), random-random (RR), and galaxy-random (DR) pair counts and describe a procedure…