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Global preventive feedback of powerful radio jets on galaxy formation. [PDF]
Proc Natl Acad Sci U S ACen R.
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Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback
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Galaxies and Clusters of Galaxies [PDF]
, 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.
Bodo Baschek, Albrecht Unsöld
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Annals of the New York Academy of Sciences, 1994
Clusters of galaxies, as the largest, well-defined astronomical objects, are interesting giant astrophysical laboratories and important probes for the large scale structure of the Universe. In X-rays they can be observed and studied as whole entities. In particular, recent X-ray observations with the ROSAT Observatory have advanced our understanding of
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Clusters of galaxies, as the largest, well-defined astronomical objects, are interesting giant astrophysical laboratories and important probes for the large scale structure of the Universe. In X-rays they can be observed and studied as whole entities. In particular, recent X-ray observations with the ROSAT Observatory have advanced our understanding of
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Galaxies and Clusters of Galaxies
1987Numerous 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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The Origin of Galaxies and Clusters of Galaxies
Science, 1984Debate 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.
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1998
Associations of galaxies range from pairs and small groups of galaxies, through the giant clusters containing thousands of galaxies, to the vast structures on scales much greater than clusters, the vast ‘walls’ which surround the large voids seen in Fig. 2.5. Very few galaxies can be considered to be truly isolated.
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Associations of galaxies range from pairs and small groups of galaxies, through the giant clusters containing thousands of galaxies, to the vast structures on scales much greater than clusters, the vast ‘walls’ which surround the large voids seen in Fig. 2.5. Very few galaxies can be considered to be truly isolated.
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Science, 2002
Globular clusters--compact and bright assemblies of stars--were long believed to have formed early in our galaxy's evolution. But as [Clement][1] explains in her Perspective, recent studies point to another, more recent source. During encounters with other, smaller galaxies, clusters may be captured.
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Globular clusters--compact and bright assemblies of stars--were long believed to have formed early in our galaxy's evolution. But as [Clement][1] explains in her Perspective, recent studies point to another, more recent source. During encounters with other, smaller galaxies, clusters may be captured.
openaire +2 more sources