Results 31 to 40 of about 6,069 (215)
THE CRITERIA FOR MORPHOLOGICAL CLASSIFICATION OF PF GALAXY CLUSTERS
The morphological types of galaxy clusters resulting from their out ward appearance is physically related to the clusters and their member galaxies. Presented here is an adopted system of morphological types of galaxy clusters based on the Zwicky, Boutz ...
E. A. Panko
doaj +1 more source
Galaxy clusters and groups in the ALHAMBRA survey [PDF]
We present a catalogue of 348 galaxy clusters and groups with $0 ...
Ascaso, B. +37 more
openaire +7 more sources
DETAILED MORPHOLOGY OF THE RICH CONCENTRATED GALAXY CLUSTERS
The results of the detailed analysis of the 2D distribution of galaxies in 28 rich galaxy clusters with significant concentration to the cluster center are present.
E. Panko, A. Sirginava, A. Stepaniuk
doaj +1 more source
Dynamical segregation of galaxies into groups and clusters [PDF]
We have performed a systematic analysis of the dynamics of different galaxy populations in galaxy groups from the 2dFGRS. For this purpose we have combined all the groups into a single system, where velocities v and radius r are expressed adimensionally.
Lares, M., Lambas, D. G., Sanchez, A. G.
openaire +2 more sources
ФОРМЫ ТРЕХКОМПОНЕНТНЫХ СВЕРХСКОПЛЕНИЙ ГАЛАКТИК
We analyzed the shapes of galaxy superclusters, contains only 3 galaxy clusters. The superclusters were found using PF Catalogue Galaxy Clusters and Groups covering 5000 square degrees as input data.
Е. А. Панько
doaj +1 more source
Evidence for AGN Feedback in Galaxy Clusters and Groups
The current generation of flagship X-ray missions, Chandra and XMM-Newton, has changed our understanding of the so-called “cool-core” galaxy clusters and groups.
Myriam Gitti +2 more
doaj +1 more source
The Effect of Age on the Grouping of Open Clusters: II—Are There Old Binary Clusters?
In the present study, we continue testing the Primordial Group hypothesis (Casado 2022), which postulates that only sufficiently young open clusters can be binary or multiple, and old clusters are essentially single.
Juan Casado
doaj +1 more source
Galaxy structures — groups, clusters and superclusters [PDF]
We provide a brief summary of the history of galaxy structure studies. We also introduce several large-scale redshift surveys and summarize the most commonly used methods to identify the groups and clusters of galaxies. We present several catalogs of galaxy groups. These catalogs can be used to study the galaxy groups in different environments.
Sepp, Tiit, Gramann, Mirt
openaire +2 more sources
AGN Feedback in Groups and Clusters of Galaxies
AGN feedback stands for the dramatic impact that a SMBH can make on its environment. It has become an essential element of models that describe the formation and evolution of baryons in massive virialized halos. The baryons' radiative losses in the cores of these halos might lead to massive cooling and vigorous star formation on the order of 10-1000 ...
Hlavacek-Larrondo, J. +2 more
openaire +3 more sources
How special are brightest group and cluster galaxies? [PDF]
Abstract We use the Sloan Digital Sky Survey (SDSS) to construct a sample of 625 brightest group and cluster galaxies (BCGs) together with control samples of non-BCGs matched in stellar mass, redshift and colour. We investigate how the systematic properties of BCGs depend on stellar mass and on their privileged location near the cluster ...
von der Linden, Anja +3 more
openaire +4 more sources

