106 citations · 415 across the 24 of their papers we have counts for
11 papers · 1 filter
Nucleation regions in the Large-Scale Structure II: Morphology and dynamical state of supercluster cores
J. M. Zúñiga, C. A. Caretta, H. Andernach
This work explores the morphology and dynamical properties of cores within rich superclusters, highlighting their role as transitional structures in the large-scale structure of th…
Nucleation regions in the Large-Scale Structure I. A catalogue of cores in nearby rich superclusters
J. M. Zúñiga, C. A. Caretta, H. Andernach
We applied a Density-Based Clustering algorithm on samples of galaxies and galaxy systems belonging to 53 rich superclusters from the \textit{Main SuperCluster Catalogue} (MSCC) to…
Testing an entropy estimator related to the dynamical state of galaxy clusters
J. M. Zúniga, C. A. Caretta, A. P. González +1
We propose the entropy estimator , calculated from global dynamical parameters, in an attempt to capture the degree of evolution of galaxy systems. We assume that the observed…
Tracing the assembly histories of galaxy clusters in the nearby universe
César A. Caretta, Heinz Andernach, Marcel Chow-Martínez +10
We have compiled a sample of 67 nearby ( < 0.15) clusters of galaxies, for which on average more than 150 spectroscopic members are available, and, by applying different methods…
PACT. II. Pressure profiles of galaxy clusters using Planck and ACT
E. Pointecouteau, I. Santiago-Bautista, M. Douspis +9
The pressure of hot gas in groups and clusters of galaxies is a key physical quantity, which is directly linked to the total mass of the halo and several other thermodynamical prop…
HIFLUGCS: X-ray luminosity -- dynamical mass relation and its implications for mass calibrations with the SPIDERS and 4MOST surveys
Yu-Ying Zhang, Thomas H. Reiprich, Peter Schneider +7
We present the X-ray luminosity (L) versus dynamical mass (M) relation for 63 nearby clusters in the HIFLUGCS. The luminosity measurements are obtained based on ~1.3 Ms of clean XM…
Two New Catalogues of Superclusters of Abell/ACO Galaxy Clusters out to redshift 0.15
M. Chow-Martínez, H. Andernach, C. A. Caretta +1
We present two new catalogues of superclusters of galaxies out to a redshit of z = 0.15, based on the Abell/ACO cluster redshift compilation maintained by one of us (HA). The first…
Probing Evolutionary Mechanisms in Galaxy Clusters: Neutral Atomic Hydrogen in Abell 1367
T. C. Scott, H. Bravo-Alfaro, E. Brinks +6
We present VLA H I imaging data for a field in the NW of the galaxy cluster Abell 1367 (z = 0.02) in an attempt to probe the effect environment has on the interstellar medium of la…
Environmental effects in the cluster Abell 85
H. Bravo-Alfaro, J. H. van Gorkom, C. Caretta +1
Based on a VLA HI-imaging through the total volume of the cluster Abell 85, we compare the distribution of HI-rich and HI deficient late type galaxies with the intra cluster medium…
The dynamical state of brightest cluster galaxies and the formation of clusters
R. Coziol, H. Andernach, C. A. Caretta +2
A large sample of Abell clusters of galaxies, selected for the likely presence of a dominant galaxy, is used to study the dynamical properties of brightest cluster members (BCMs).…
Galaxy activity influenced by the environment in the cluster of galaxies Abell 85
C. A. Caretta, J. M. Islas-Islas, J. P. Torres-Papaqui +3
We analyse the relation between the dynamical state of a cluster of galaxies and the activity (star formation and AGN) of its members. For the case of Abell 85 we find some evidenc…