Astrophysics Of Galaxy Clusters
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Merging Processes In Galaxy Clusters
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Author : L. Feretti
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-18
Merging Processes In Galaxy Clusters written by L. Feretti and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-18 with Science categories.
Mergers are the mechanisms by which galaxy clusters are assembled through the hierarchical growth of smaller clusters and groups. Major cluster mergers are the most energetic events in the Universe since the Big Bang. Many of the observed properties of clusters depend on the physics of the merging process. These include substructure, shock, intra cluster plasma temperature and entropy structure, mixing of heavy elements within the intra cluster medium, acceleration of high-energy particles, formation of radio halos and the effects on the galaxy radio emission. This book reviews our current understanding of cluster merging from an observational and theoretical perspective, and is appropriate for both graduate students and researchers in the field.
Clusters Of Galaxies Beyond The Thermal View
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Author : Jelle Kaastra
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-05-01
Clusters Of Galaxies Beyond The Thermal View written by Jelle Kaastra and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-05-01 with Science categories.
The existence of soft excess emission originating from clusters of galaxies, de ned as em- sion detected below 1 keV in excess over the usual thermal emission from hot intracluster gas (hereafter the ICM) has been claimed since 1996. Soft excesses are particularly - portant to detect because they may (at least partly) be due to thermal emission from the Warm-Hot Intergalactic Medium, where as much as half of the baryons of the Universe could be. They are therefore of fundamental cosmological importance. Soft excess emission has been observed (and has also given rise to controversy) in a number of clusters, mainly raising the following questions: (1) Do clusters really show a soft excess? (2) If so, from what spatial region(s) of the cluster does the soft excess or- inate? (3) Is this excess emission thermal, originating from warm-hot intergalactic gas (at 6 temperatures of?10 K), or non-thermal, in which case several emission mechanisms have been proposed. Interestingly, some of the non-thermal mechanisms suggested to account for soft excess emission can also explain the hard X-ray emission detected in some clusters, for example by RXTE and BeppoSAX (also see Petrosian et al. 2008—Chap. 10, this issue; Rephaeli et al. 2008—Chap. 5, this issue).
Clusters Of Galaxies Volume 3 Carnegie Observatories Astrophysics Series
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Author : John S. Mulchaey
language : en
Publisher: Cambridge University Press
Release Date : 2004-09-23
Clusters Of Galaxies Volume 3 Carnegie Observatories Astrophysics Series written by John S. Mulchaey and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09-23 with Science categories.
Series of review papers covering clusters of galaxies and related phenomena.
Clusters Of Galaxies Physics And Cosmology
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Author : Andrei M. Bykov
language : en
Publisher: Springer
Release Date : 2019-10-17
Clusters Of Galaxies Physics And Cosmology written by Andrei M. Bykov and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-17 with Science categories.
Clusters of galaxies are large assemblies of galaxies, hot gas and dark matter bound together by gravity. Galaxy clusters are now one of the most important cosmological probes to test the standard cosmological models. Constraints on the Dark Energy equation of state from the cluster number density measurements, deviations from the Gaussian perturbation models, the Sunyaev-Zeldovich effect as well as the dark matter proles are among the issues to be studied with clusters. The baryonic composition of clusters is dominated by hot gas that is in quasi-hydrostatic equilibrium within the dark matter-dominated gravitational potential well of the cluster. The hot gas is visible through spatially extended thermal X-ray emission, and it has been studied extensively both for assessing its physical properties and as a tracer of the large-scale structure of the Universe. Magnetic fields as well as a number of non-thermal plasma processes play a role in clusters of galaxies as we observe from radioastronomical observations. The goal of this volume is to review these processes and to investigate how they are interlinked. Overall, these papers provide a timely and comprehensive review of the multi-wavelength observations and theoretical understanding of clusters of galaxies in the cosmological context. Thus, the volume will be particularly useful to postgraduate students and researchers active in various areas of astrophysics and space science. Originally published in Space Science Reviews in the Topical Collection "Clusters of Galaxies: Physics and Cosmology"
The Distribution Of The Galaxies
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Author : William C. Saslaw
language : en
Publisher: Cambridge University Press
Release Date : 2000
The Distribution Of The Galaxies written by William C. Saslaw and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Science categories.
This topical volume examines one of the leading problems in astronomy - how galaxies cluster in our Universe. This book, first published in 2000, describes gravitational theory, computer simulations and observations related to galaxy distribution functions. It embeds distribution functions in a broader astronomical context, including other exciting contemporary topics such as correlation functions, fractals, bound clusters, topology, percolation and minimal spanning trees. Key results are derived and the necessary gravitational physics provided to ensure the book is self-contained. Throughout the book, theory, computer simulation and observation are carefully interwoven and critically compared. The book also shows how future observations can test the theoretical models for the evolution of galaxy clustering at early times in our Universe. This clear and authoritative volume is written at a level suitable for graduate students, and will be of key interest to astronomers, cosmologists, physicists and applied statisticians.
A Pan Chromatic View Of Clusters Of Galaxies And The Large Scale Structure
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Author : Manolis Plionis
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-29
A Pan Chromatic View Of Clusters Of Galaxies And The Large Scale Structure written by Manolis Plionis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-29 with Science categories.
The reviews presented in this volume cover a huge range of cluster of galaxies topics. Readers will find the book essential reading on subjects such as the physics of the ICM gas, the internal cluster dynamics, and the detection of clusters using different observational techniques. The expert chapter authors also cover the huge advances being made in analytical or numerical modeling of clusters, weak and strong lensing effects, and the large scale structure as traced by clusters.
Clusters Of Galaxies
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Author : Florence Durret
language : en
Publisher: Atlantica Séguier Frontières
Release Date : 1994
Clusters Of Galaxies written by Florence Durret and has been published by Atlantica Séguier Frontières this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Astrophysics categories.
Astrophysics Of Galaxy Clusters
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Author : Alfonso Cavaliere (Physicist)
language : en
Publisher:
Release Date : 2011
Astrophysics Of Galaxy Clusters written by Alfonso Cavaliere (Physicist) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Science categories.
This book presents a collection of contributions from the 'International School of Physics' Enrico Fermi, held in Varenna, Italy in July 2008. This is the second school devoted to the astrophysics of galaxy clusters, and comes four years after the first; 'Background Microwave Radiation and Intra-cluster Cosmology'. The motivation for this second school was provided by the significant expansion in research into these, the largest gravitationally bound systems, and by the great interest in multifaceted observational, theoretical and numerical simulations of clusters. Topics were dealt with in a series of ten pedagogical reviews, and the program also included eight seminar talks. Written versions of most of these reviews and talks are published in this volume. The papers included here provide a useful updated account of key aspects of a wide range of topics in cluster research. This volume is dedicated to the memory of Professor Francesco Melchiorri, a leader in experimental Cosmic Microwave Background research and a mentor to many.
New Research On Astrophysics Neutron Stars And Galaxy Clusters
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Author : Louis V. Ross
language : en
Publisher: Nova Publishers
Release Date : 2007
New Research On Astrophysics Neutron Stars And Galaxy Clusters written by Louis V. Ross and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
Book & CD. Humans have probably always strived to understand the world around them. And the heavens have drawn rapt attention- - perhaps because they seem so close but aren't. Understanding of the physical and chemical properties, origin, and evolution of the celestial bodies has been propelled forward by the startling advances in space science, computers and miniaturisation. Astrophysics can claim to be one of the most exciting fields in science in terms of leaps forward. This book brings together leading research from around the world on astrophysics, neutron stars and galaxy clusters.
Nebulae Star Clusters Galaxies
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Author : Wolfgang Steinicke
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-05-23
Nebulae Star Clusters Galaxies written by Wolfgang Steinicke and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-23 with Science categories.
Nebulae, star clusters, and galaxies are outside our solar system. They belong to the 'deep sky' and lead the observer to great distances and at the same time the view goes far into the past. The light of the most distant galaxies took billions of years to reach us. No less fascinating is our home galaxy, the Milky Way, offering many bright nebulae and star clusters. The book covers three important topics related to deep-sky objects: history, astrophysics, and observation. When beginners observe an object visually, not knowing anything about it, they will only perceive a faint spot of light - nothing really exciting. So, to get the right 'cosmic' feeling, the view should be enriched with stories about the object's discovery, distance, physical nature, or evolution. Supplied with this kind of information, deep-sky observing becomes a fascinating activity - braving the cold and darkness. Over time, advanced fields such as observation techniques or astrophotography come into play. The book informs the reader about all these topics and offers a comprehensive collection of interesting targets.