Results 21 to 30 of about 572 (187)

Clustering of galaxies at high redshifts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1998
Recent observations show a large concentration of galaxies at high redshift. At first sight, strong clustering of galaxies at high redshifts seems to be in contradiction with the models of structure formation. In this paper we show that such structures are a manifestation of the strong clustering of rare peaks in the density field.
openaire   +1 more source

Methods for identifying high‐redshift galaxy cluster candidates [PDF]

open access: yesAstronomische Nachrichten, 2019
AbstractRecent theories linked long gamma ray bursts (GRBs) to galaxies with rapid star formation or starburst; thus, we expect that long GRBs (LGRBs) are more frequent in midcluster galaxies where mergers and tidal interactions between gas‐rich galaxies are more likely to occur. Yet there is no galaxy cluster known to be associated with LGRBs.
Pinter, Sandor   +5 more
openaire   +2 more sources

The Association of Galaxy Clusters with Moderately-High-Redshift Quasars [PDF]

open access: yesSymposium - International Astronomical Union, 1986
CCD images of quasars having redshifts between 0.3 and 0.65 are analyzed to study the association of galaxies with quasars. Average luminosity functions (LF) of the excess galaxies associated with the radio-loud quasars are determined. It is found that for the sub-sample with z>0.55, there is a significant brightening of the characteristic magnitude
H. K. C. Yee, Richard F. Green
openaire   +1 more source

The Clustering of High‐Redshift Galaxies in the Cold Dark Matter Scenario [PDF]

open access: yesThe Astrophysical Journal, 1999
33 pages, 10 figures, AAS LaTeX (aaspp4.sty), submitted to ...
Katz, N, Hernquist, L, Weinberg, DH
openaire   +4 more sources

The observed properties of high-redshift cluster galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
We use the semi-analytic models of galaxy formation developed by Kauffmann, White \& Guiderdoni to generate predictions for the observed properties of cluster and group galaxies at redshifts between 0 and 0.6. We examine four sets of cosmological initial conditions: low-density CDM models with and without cosmological constant, a flat CDM model and
openaire   +2 more sources

Implications of multiple high-redshift galaxy clusters [PDF]

open access: yesPhysical Review D, 2011
11 pages, 7 figures, modified to match published ...
Ben Hoyle, Raul Jimenez, Licia Verde
openaire   +3 more sources

Optical signatures of high-redshift galaxy clusters [PDF]

open access: yesThe Astrophysical Journal, 1994
We combine an N-body and gasdynamic simulation of structure formation with an updated population synthesis code to explore the expected optical characteristics of a high-redshift cluster of galaxies. We examine a poor (2 keV) cluster formed in a biased, cold dark matter cosmology and employ simple, but plausible, threshold criteria to convert gas into ...
Evrard, August E., Charlot, S.
openaire   +2 more sources

The clustering properties of high-redshift passive galaxies

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2023
ABSTRACT We investigate the clustering properties of 3 < z < 5 candidate passive galaxies from the Merlin et al. (2019) sample residing in the GOODS-North (35 sources) and GOODS-South (33 sources) fields. Within the large uncertainties due to the paucity of sources we do not detect clustering signal in GOODS-North, while ...
M Magliocchetti   +3 more
openaire   +2 more sources

Hawaii Two-0: high-redshift galaxy clustering and bias [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We perform an analysis of two-point galaxy clustering and galaxy bias using Subaru Hyper-Suprime Cam (HSC) data taken jointly by the Subaru Strategic Program and the University of Hawaii in the Cosmic Evolution Survey (COSMOS) field over an area of 1.8 sq deg.
Róbert Beck   +4 more
openaire   +2 more sources

Tracing the Total Stellar Mass and Star Formation of High-redshift Protoclusters

open access: yesThe Astrophysical Journal, 2023
As the progenitors of present-day galaxy clusters, protoclusters are excellent laboratories to study galaxy evolution. Since existing observations of protoclusters are limited to the detected constituent galaxies at UV and/or infrared wavelengths, the ...
Roxana Popescu   +8 more
doaj   +1 more source

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