Results 1 to 10 of about 9,377 (217)
Evolution of galaxies in clusters
The Astrophysical Journal, 1994 33 pages, normal ...
Charlot, S., Silk, J.
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GALAXY CLUSTERS AT HIGH REDSHIFT AND EVOLUTION OF BRIGHTEST CLUSTER GALAXIES [PDF]
The Astrophysical Journal, 2011 Identification of high redshift clusters is important for studies of cosmology and cluster evolution. Using photometric redshifts of galaxies, we identify 631 clusters from the Canada-France-Hawaii Telescope (CFHT) Wide field, 202 clusters from the CHFT Deep field, 187 clusters from the Cosmic Evolution Survey (COSMOS) and 737 clusters from the Spitzer
Wen, Z. L., Han, J. L.
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Evolution of clusters of galaxies
The Astrophysical Journal, 1991 In hierarchical models for structure formation like CDM, the mass scale of clustering evolves rapidly and clusters in the past are predicted to be less massive, but denser and more numerous. The indication from optical searches is that the cluster population is roughly stable in that high velocity dispersion clusters seem to be about as abundant at z ~
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The “Sausage” and “Toothbrush” clusters of galaxies and the prospects of LOFAR observations of clusters of galaxies [PDF]
Astronomische Nachrichten, 2013 AbstractLOFAR, the Low Frequency Radio Array, is a new pan‐European radio telescope that is almost fully operational. One of its main drivers is to make deep images of the low frequency radio sky. To be able to do this a number of challenges need to be addressed. These include the high data rates, removal of radio frequency interference, calibration of
Jackson, Neal +30 more
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International School of Physics “Enrico Fermi”, 2010 40 pages, 26 figures, Enrico Fermi Summer School "Astrophysics of Galaxy Clusters" held in Varenna, Italy July 15-25 ...
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Statistics of Galaxy Clustering [PDF]
, 2006 In this introductory talk we will establish connections between the statistical analysis of galaxy clustering in cosmology and recent work in mainstream spatial statistics. The lecture will review the methods of spatial statistics used by both sets of scholars, having in mind the cross-fertilizing purpose of the meeting series.
Martinez, Vicent J., Saar, Enn
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Impact of filaments on galaxy cluster properties in The Three Hundred simulation [PDF]
EPJ Web of ConferencesGalaxy clusters and their filamentary outskirts reveal useful laboratories to test cosmological models and investigate Universe composition and evolution. Their environment, in particular the filaments of the Cosmic Web to which they are connected, plays
Santoni S. +4 more
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Unveiling Chemical Enrichment in the A2029 Core with XRISM, XMM-Newton, and Chandra
The Astrophysical Journal LettersWe present new measurements of the chemical abundance pattern in the core of the nearby galaxy cluster Abell 2029 (A2029), based on XRISM observations with Resolve (37 ks) and Xtend (500 ks), combined with archival data from XMM-Newton (European Photon ...
Arnab Sarkar +8 more
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The Astrophysical Journal LettersWe present joint South Pole Telescope and XMM-Newton observations of eight massive galaxy clusters (0.8–2 × 10 ^15 M _⊙ ) spanning a redshift range of 0.16–0.35. Employing a novel Sunyaev–Zel’dovich + X-ray fitting technique, we effectively constrain the
Arnab Sarkar +13 more
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The Astrophysical JournalA giant radio halo (RH) is a diffuse synchrotron emission observed on the scale of megaparsecs, typically found in the central region of merging galaxy clusters.
Kosuke Nishiwaki, Katsuaki Asano
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