Results 251 to 260 of about 153,040 (288)

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

Fujimoto S, Ouchi M, Kohno K, Valentino F, Giménez-Arteaga C, Brammer G, Furtak L, Kohandel M, Oguri M, Pallottini A, Richard J, Zitrin A, Bauer F, Boylan-Kolchin M, Dessauges-Zavadsky M, Egami E, Finkelstein S, Ma Z, Smail I, Watson D, Hutchison T, Rigby J, Welch B, Ao Y, Bradley L, Caminha G, Caputi K, Espada D, Endsley R, Fudamoto Y, González-López J, Hatsukade B, Koekemoer A, Kokorev V, Laporte N, Lee M, Magdis G, Ono Y, Rizzo F, Shibuya T, Shimasaku K, Sun F, Toft S, Umehata H, Wang T, Yajima H.   +45 more
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Galaxies’ clustering generalized theory

Physics of the Dark Universe, 2021
Abstract In the present work we present, for the first time ever, the exact configuration integral entering the partition function Z that allows for a statistical mechanics treatment of galactic clustering. Thus, the general distribution function and the general clustering parameter for point mass systems is obtained from a grand canonical ...
M. Hameeda, Angelo Plastino, M.C. Rocca
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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 clusters

2016
I present studies of the X-ray emission from galaxy clusters in the context of understanding the multi-wavelength selection function and mass estimation of galaxy clusters. Clusters are gravitationally bound systems of dark matter, gas and galaxies, and are the largest gravitationally bound structures in the Universe.
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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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Galaxy Clusters

2020
Tesla Jeltema, Tim McKay, Chris Miller, Joe Mohr, Kathy Romer   +4 more
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Clustering due to cluster galaxies

Monthly Notices of the Royal Astronomical Society, 1991
A calculation of the contribution that galaxies in clusters make towards the clustering exhibited by all galaxies is presented. It is shown that, within observational uncertainties, cluster galaxies may be responsible for all the clustering measured by the galaxy-galaxy correlation function (GGCF). This confirms that cluster galaxies make a significant
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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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