Compact Stellar Systems In Galaxy Clusters And Groups
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Compact Stellar Systems In Galaxy Clusters And Groups
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Author :
language : en
Publisher:
Release Date : 2008
Compact Stellar Systems In Galaxy Clusters And Groups written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Galaxies categories.
Ultra Compact And Ultra Diffuse Stellar Systems In Nearby Galaxy Clusters Signs Of Environmental Influence
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Author : Carolin Wittmann
language : en
Publisher:
Release Date : 2018
Ultra Compact And Ultra Diffuse Stellar Systems In Nearby Galaxy Clusters Signs Of Environmental Influence written by Carolin Wittmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Galaxies categories.
Ultra Compact And Ultra Diffuse Stellar Systems In Nearby Galaxy Clusters
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Author : Carolin Wittmann
language : en
Publisher:
Release Date : 2018
Ultra Compact And Ultra Diffuse Stellar Systems In Nearby Galaxy Clusters written by Carolin Wittmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Early Type Stellar Systems In Nearby Galaxy Clusters
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Author : Ingo Misgeld
language : en
Publisher:
Release Date : 2011
Early Type Stellar Systems In Nearby Galaxy Clusters written by Ingo Misgeld and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
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.
The X Ray View Of Galaxies In Compact Groups And The Coma Cluster Infall Region
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Author : Tyler Dylan Desjardins
language : en
Publisher:
Release Date : 2014
The X Ray View Of Galaxies In Compact Groups And The Coma Cluster Infall Region written by Tyler Dylan Desjardins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
In this thesis, we have explored what information may be gleaned from X-ray observations of galaxies in dense environments. We use X-ray observations from XMM- Newton and the Chandra X-ray Observatory, and multi-wavelength ancillary data, to investigate the X-ray emission of galaxies. First, we study the distribution and properties of the intragroup diffuse X-ray emission in compact groups (CGs) of galaxies. From a sample of 19 CGs, we find the morphology of hot gas in low-mass groups is varied, and most systems have hot gas (if any) associated with only individual members. The galaxy-linked hot gas is coupled with high star formation rates (SFRs), while only CGs with high baryonic masses have substantial hot gas linked to the group environment. It is high-mass CGs that also agree well with the observed scaling relations between diffuse X-ray luminosity (LX), gas temperature, and velocity dispersion predicted and observed in galaxy clusters, indicating that the hot gas in only massive CGs is virialized. We also investigate the relations between LX, SFR, and stellar mass from individual members of CGs and the infall region of the nearby Coma galaxy cluster, which is the only environment that has a mid-infrared galaxy color distribution similar to CGs. The Coma galaxies agree with the scaling relations between LX, SFR, and stellar mass from the literature within uncertainties, while the CG members often show an X-ray excess. We also used our multi-wavelength observations to identify active galaxies in the Coma infall sample and find that the fraction of active galaxies is similar to the CG environment. From our observations of the diffuse X-ray emission in CGs, we find it unlikely that the intragroup hot gas is responsible for the rapid transformation of galaxies from star-forming to quiescent. While the fraction of nuclear activity in Coma infall and CG galaxies is similar, which may reflect the influence of multi-galaxy gravitational interactions, the X-ray emission from individual galaxies in the two environments is also markedly different.
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.
Stars Clusters And Galaxies
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Author : John R. Gustafson
language : en
Publisher:
Release Date : 1992
Stars Clusters And Galaxies written by John R. Gustafson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Astronomy categories.
Describes stars and groups of stars and explains how they are formed, why they shine, and how to find them in the sky.
Observational Dynamics Of Low Mass Stellar Systems
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Author : Matthias Johannes Frank
language : en
Publisher:
Release Date : 2012
Observational Dynamics Of Low Mass Stellar Systems written by Matthias Johannes Frank and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Star Clusters
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Author : B.W. Carney
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-18
Star Clusters written by B.W. Carney 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.
Star clusters are at the heart of astronomy, being key objects for our understanding of stellar evolution and galactic structure. Observations with the Hubble Space Telescope and other modern equipment have revealed fascinating new facts about these galactic building blocks. This book provides two comprehensive and up-to-date, pedagogically designed reviews on star clusters by two well-known experts in the field. Bruce Carney presents our current knowledge of the relative and absolute ages of globular clusters and the chemical history of our Galaxy. Bill Harris addresses globular clusters in external galaxies and their use as tracers of galaxy formation and cosmic distance indicators. The book is written for graduate students as well as professionals in astronomy and astrophysics.