Results 1 to 10 of about 6,069 (215)
Astronomy & AstrophysicsLarge-scale magnetic fields in galaxy clusters can influence their physics and the evolution of cluster-embedded galaxies. These properties remain poorly constrained due to a historical lack of high-sensitivity and high-resolution spectropolarimetric ...
Loi F. +7 more
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The large-scale environment of groups and clusters of galaxies [PDF]
Proceedings of the International Astronomical Union, 2004 It appears that the dynamical status of clusters and groups of galaxies is related to the large-scale structure of the Universe. A few interesting trends have been established: (1) The Cluster Substructure - Alignment Connection, by which clusters show a strong correlation between their tendency to be aligned with their neighbors and their dynamical ...
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Evolution of the Physical Properties of the Most Massive Galaxies in Clusters and Their Protohalos
The Astrophysical JournalWe investigated the evolution of the physical properties of the brightest galaxies in clusters and their protohalos from z = 4 to z = 0. Galaxy clusters and groups are identified using a halo-based group finder applied to the COSMOS2020 galaxy catalog ...
Qingyang Li +9 more
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Some Properties of Galaxy Structures
Open Astronomy, 2011 We analysed some properties of galaxies structures based on the PF catalog of galaxy structures (Panko & Flin 2006) and the Tully NBG catalog (Tully 1988).
Flin Piotr +4 more
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NUMERICAL ESTIMATOR FOR LARGE-SCALE COSMIC STRUCTURES
Odessa Astronomical Publications, 2018 Components of large-scale structure (LSS) of Universe includes galaxy clusters , walls , filaments , groups and field galaxies. The question of spatial organization of all these components remains open despite of a number of recently developed methods of
A. V. Tugay, N. G. Pulatova, A. D. Zhoga
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Formation of Groups and Clusters of Galaxies
, 1998 The formation, inner properties, and spatial distribution of galaxy groups and clusters are closely related to the background cosmological model. We use numerical simulations of variants of the CDM model with different cosmological parameters and distinguish relaxed objects from recent mergers using the degree of virialisation.
Knebe, Alexander, Mueller, Volker
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Group-Cluster Merging and the Formation of Starburst Galaxies [PDF]
The Astrophysical Journal, 1999 A significant fraction of clusters of galaxies are observed to have substructure, which implies that merging between clusters and subclusters is a rather common physical process of cluster formation. It still remains unclear how cluster merging affects the evolution of cluster member galaxies.
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The Astrophysical JournalHerein, we present the statistical properties of active galactic nuclei (AGNs) for approximately 1 million member galaxies of galaxy groups and clusters with 0.1 < cluster redshift ( z _cl ) < 1.4 selected using the Subaru Hyper Suprime-Cam, the so ...
Yoshiki Toba +19 more
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Astronomy & AstrophysicsGalaxy groups and clusters trace the large-scale matter distribution, with their clustering usually interpreted mainly as a function of halo mass. Yet, at fixed mass, their baryonic properties retain information about halo growth, gas accretion, and ...
Marini Ilaria +7 more
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Extended Radio Emission in the Perhipheral Regions of the Shapley Concentration Core
Galaxies, 2017 The Shapley Concentration (SC) is a galaxy supercluster (few tens of degrees) in the Local Universe (<z>∼0.048) which is currently undergoing cluster mergers and group accretion.
Tiziana Venturi +6 more
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