Results 181 to 190 of about 129,479 (207)

On the distribution of galaxies and galaxy clusters

New Vistas in Astrophysics, 2000
The fact that galaxy and galaxy clusters distributions exhibit fractal properties is well established since twenty years 1 ,2. Nowadays, the controversy concerns the range of the fractal regime , the value of the fractal dimension and the eventual presence of a cross-over to homogeneity 3,4,5 In this paper we briefly review the methods of analysis ...
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Globular Clusters and Galaxy Formation in Clusters of Galaxies

1984
Taken at face value globular cluster counts indicate that: (1) Most elliptical galaxies in rich clusters were not formed by merging spirals and (2) central galaxies in rich clusters were already very special at the time when they were forming globular clusters.
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The Motion of Galaxies in Galaxy Clusters

2012
Zwicky’s observation of the unexpectedly high velocities of the individual galaxies in the cluster of galaxies known as the ComaCluster led to the first appearance of the dark matter hypothesis. Unlike the organized motions in a nearly steady-state of the individual stars in a single spiral galaxy, the galaxies within a cluster are generally observed ...
Fred I Cooperstock, Steven Tieu
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From Clusters to Proto-Clusters: The Infrared Perspective on Environmental Galaxy Evolution

Universe, 2022
Stacey AlbertS, Allison Noble
exaly  

The growth of intracluster light in XCS-HSC galaxy clusters from 0.1 < z < 0.5

Monthly Notices of the Royal Astronomical Society, 2021
Chris A Collins, Lee S Kelvin, Ivan K Baldry   +2 more
exaly  

The Nature of Galaxies and Galaxy Clusters

2012
Galaxies are huge collections of stars and vast amounts of gas and dust and are found throughout the known universe. Galaxies outside our own are so far away that the stars blend together into an amorphous haze, and some of the dust (in larger concentrations) is visible in silhouette against the bright material (e.g., the dust lane of the Andromeda and
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Galaxy Environment and Clusters of Galaxies

1994
The galaxy population of clusters of galaxies is clearly different from the “field” population. While some of the static parameters, morphology for instance, are quite likely defined at formation, others, HI content, are strongly modified during the cluster lifetime due to the interaction of the objects with their environment.
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Cosmological Parameters from Observations of Galaxy Clusters

Annual Review of Astronomy and Astrophysics, 2011
Steven W Allen, August E Evrard, A Mantz   +2 more
exaly  

Mass Profiles of Galaxy Clusters from X-ray Analysis

Space Science Reviews, 2013
S Ettori, E Pointecouteau, L Lovisari
exaly  

The formation histories of galaxy clusters

Astroparticle Physics, 2005
Martin White
exaly