Results 21 to 30 of about 2,500,510 (339)

Simulations of ram-pressure stripping in galaxy-cluster interactions [PDF]

open access: yes, 2016
Observationally, the quenching of star-forming galaxies appears to depend both on their mass and environment. The exact cause of the environmental dependence is still poorly understood, yet semi-analytic models (SAMs) of galaxy formation need to ...
Dominik Steinhauser   +2 more
semanticscholar   +1 more source

Accretion of galaxy groups into galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
José A Benavides   +2 more
openaire   +3 more sources

THE PECULIARITIES IN O-TYPE GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2017
We present the results of analysis of 2D distribution of galaxies in galaxy cluster fields. The Catalogue of Galaxy Clusters and Groups PF (Panko & Flin) was used as input observational data set.
E. A. Panko, S. I. Emelyanov
doaj   +1 more source

Signatures of Galaxy-Cluster Interactions: Spiral Galaxy Rotation Curve Asymmetry, Shape, and Extent [PDF]

open access: yes, 2000
The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim that the shape of a galaxy's ...
Adabi M. G.   +16 more
core   +4 more sources

RASS-SDSS Galaxy Cluster Survey. VII. On the Cluster Mass to Light ratio and the Halo Occupation Distribution [PDF]

open access: yes, 2006
We explore the mass-to-light ratio in galaxy clusters and its relation to the cluster mass. We study the relations among the optical luminosity ($L_{op}$), the cluster mass ($M_{200}$) and the number of cluster galaxies within $r_{200}$ ($N_{gal}$) in a ...
Biviano, A.   +3 more
core   +2 more sources

DISCOVERY OF A GALAXY CLUSTER WITH A VIOLENTLY STARBURSTING CORE AT z = 2.506 [PDF]

open access: yes, 2016
We report the discovery of a remarkable concentration of massive galaxies with extended X-ray emission at zspec = 2.506, which contains 11 massive (M* ≳ 1011 M⊙) galaxies in the central 80 kpc region (11.6σ overdensity).
Tao Wang   +19 more
semanticscholar   +1 more source

Mass Distribution in Galaxy Cluster Cores [PDF]

open access: yes, 2016
Many processes within galaxy clusters, such as those believed to govern the onset of thermally unstable cooling and active galactic nucleus feedback, are dependent upon local dynamical timescales. However, accurate mapping of the mass distribution within
M. Hogan   +10 more
semanticscholar   +1 more source

LINEAR SUBSTRUCTURES IN GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2019
We propose detailed scheme that is describing the morphology of linear substructures in galaxy clusters. Our base morphological scheme di- vides galaxy clusters using numerical criteria according the parameters: concentration to the cluster center, the ...
E. Panko   +3 more
doaj   +1 more source

Deep Synoptic Array Science: Two Fast Radio Burst Sources in Massive Galaxy Clusters

open access: yesThe Astrophysical Journal Letters, 2023
The hot gas that constitutes the intracluster medium (ICM) has been studied at X-ray and millimeter/submillimeter wavelengths (Sunyaev–Zel’dovich effect) for decades.
Liam Connor   +24 more
doaj   +1 more source

3D-Matched-Filter Galaxy Cluster Finder I: Selection Functions and CFHTLS Deep Clusters [PDF]

open access: yes, 2009
We present an optimised galaxy cluster finder, 3D-Matched-Filter (3D-MF), which utilises galaxy cluster radial profiles, luminosity functions and redshift information to detect galaxy clusters in optical surveys.
Adami   +53 more
core   +4 more sources

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