Results 171 to 180 of about 129,479 (207)

Galaxy clusters enveloped by vast volumes of relativistic electrons [PDF]

Nature, 2022
V Cuciti, F De Gasperin, M Bruggen
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The Origin of Galaxies and Clusters of Galaxies

Science, 1984
Debate on how galaxies and clusters of galaxies formed has reached an interesting stage at which one can find arguments for quite different scenarios. The galaxy distribution has a complex "frothy" character that could be the fossil of a network of protoclusters or pancakes that produced galaxies.
openaire   +2 more sources

Evolution of Clusters of Galaxies

Publications of the Astronomical Society of Japan, 1993
Abstract We have investigated the evolution of clusters of galaxies using direct N-body simulations in which each galaxy is modeled by many particles. We found that the positive correlation between the masses and the distances of galaxies from the center of a cluster develops as the result of perturbations due to close encounters with ...
Yoko Funato, Junichiro Makino, Toshikazu Ebisuzaki   +2 more
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Galaxies and Clusters of Galaxies

1987
Numerous galaxies similar to our own can be observed at distances far beyond the boundaries of our Galaxy. Sometimes they are referred to as “extragalactic nebulae” because they look like faint nebulae when seen through small telescopes. Consequently they were initially given names such as the “Magellanic Clouds”, the “Andromeda nebula” and so forth.
Georgios Contopoulos, Dimitrios Kotsakis
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Galaxies and Clusters of Galaxies

2002
The leap into deep space outside our Milky Way Galaxy, into the realm of the distant galaxies (or the extragalactic nebulae, as they were formerly called), and the beginnings of a cosmology based on observations, will be considered throughout history to be one of the most important achievements of the 20th century.
Albrecht Unsöld, Bodo Baschek
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Dwarf galaxies in Clusters

Astrophysics and Space Science, 2003
Dwarf and Low Surface Brightness (LSB) galaxies are the most numerous type of galaxies in the local Universe. However ubiquitous they are, their properties remain widely unexplored. Dwarf galaxies range from Ultra Compact Objects (UCO), Dwarf Ellipticals (dE), Dwarf Spheroidals (dSph) to Dwarf Irregulars (dIrr) and are generally of low surface ...
Infante Lira, Leopoldo, Mieske, Steffen, Hilker, M.   +2 more
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Galaxy evolution in clusters

Astrophysics and Space Science, 2003
The galaxy populations in present-day clusters are distinctly different from those of the field, indicating that environment plays a strong role in galaxy evolution. This review discusses some of the recent observations of moderate to high redshift clusters.
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Galaxy Distribution in Clusters of Galaxies

Symposium - International Astronomical Union, 1999
Galaxy distribution in clusters maybe affected by dynamical evolution of clusters and merging process of their member galaxies. In oreder to studey the effect, we study formation and evolution of galaxies in clusters by using N-body simulation. To identify galaxy size dark halos, we use the adaptive friends-of-friends algorithm (van Kampen 1995) at ...
T. Okamoto, S. Yachi, A. Habe
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Evolution of Galaxies in Clusters

2004
In dieser Doktorarbeit studiere ich die Entstehung und Entwicklung von Galaxien in Galaxienhaufen sowohl theoretisch als auch unter Einbeziehung von Beobachtungsdaten. Diese Doktorarbeit gliedert sich in zwei Teile: Einem theoretischen Teil schliesst sich eine Datenanalyse an. Im ersten Kapitel beschreibe ich warum Galaxienhaufen wichtig sind, erklaere
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