Extragalactic Jets
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Extragalactic Radio Sources
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Author : Jacques Roland
language : en
Publisher: Cambridge University Press
Release Date : 1992-06-26
Extragalactic Radio Sources written by Jacques Roland 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 1992-06-26 with Nature categories.
The physics of active galactic nuclei, the origin of extragalactic jets and the formation of extended extragalactic radio sources are among the most interesting challenges of modern astrophysics. This book contains the proceedings of the 7th meeting of the Institut d'Astrophysique de Paris, which drew together both theorists and observers in this exciting field. Recent observational data at X-ray, optical and radio wavelengths is discussed, and new theoretical developments concerning beam and jet formation models are considered. Special treatment is given to plasma physics problems related to particle acceleration, magnetic reconnection, beam-plasma interaction and coherent emission. The volume will be of use to all students and researchers who are working in this field.
Extragalactic Jets From Every Angle Iau S313
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Author : Francesco Massaro
language : en
Publisher: Cambridge University Press
Release Date : 2015-04-16
Extragalactic Jets From Every Angle Iau S313 written by Francesco Massaro 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 2015-04-16 with Science categories.
Extragalactic jets provide the direct observational evidence for a connection between supermassive black holes and their surrounding cosmic environments. They deliver the energy released by an accreting black hole across large distances and impact the formation and evolution of surrounding structures, carrying information about the black hole's power, spin, accretion state and characteristic timescales. IAU Symposium 313 brings together observational astronomers working across the electromagnetic spectrum with theorists, to investigate our understanding of the physics of relativistic jets. They address questions on topics such as: unification scenarios for blazars and radio galaxies, the interactions between jets and their environments, jet composition and structure, the role of magnetic fields, mechanisms of particle acceleration, high-energy emissions, and the scaling of physical jet phenomena with black-hole mass, from extragalactic to galactic sources. This volume benefits observers and theorists, both researchers and advanced students, working on relativistic jets in distant galaxies.
Extragalactic Jets
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Author : Travis Arthur Rector
language : en
Publisher:
Release Date : 2008
Extragalactic Jets written by Travis Arthur Rector and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Astronomy categories.
"These proceedings of an international meeting held May 2007 in Girdwood, Alaska, USA provide a comprehensive overview of recent theoretical and observational work on the nature of extragalactic jets, from parsec to kiloparsec scales. Special emphasis is given to the interaction of jets with their environment and to the insights this interaction can provide. The invited reviews, contributed talks, and poster sessions form a detailed summary of the latest findings, as well as illustrate outstanding questions that remain to be resolved. This book is suitable for researchers and graduate students. The origin and evolution of highly collimated and highly energetic outflows from the nuclei of some galaxies remains, after over 30 years of intensive study, and enigmatic process. We still do not know how these jets are collimated, or what they contain beyond relativistic particles and magnetic fields, much less how they come to be in the first place. If we could unravel the mystery of their origins, then it is clear that new and significant constraints could also be placed on the origin and evolution of the "central engine," presumably a massive black hole, that creates them. This is turn would give rise to new constraints on the formation and evolution of the parent galaxies and their environment. The quest for insights into the nature of these objects has always been made difficult by the last of information conveyed by their simple power law radiation spectrum, and so much of the information gained must be inferential. However, the hope remains that by gaining an understanding of the interaction of these objects with their environment we may be able to deduce the key parameters of the jets themselves. This strategy of working from "the outside in" is showing increasing promise as higher resolution observations with increasing sensitivity are being made over increased coverage in wavelength, especially as these are cast against results from sophisticated theoretical calculations that include three-dimensional MHD simulations."--Publisher's website
Jets In Extragalactic Radio Sources
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Author : Klaus Meisenheimer
language : en
Publisher:
Release Date : 1993
Jets In Extragalactic Radio Sources written by Klaus Meisenheimer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Science categories.
The existence of jets emanating from the central sources of radio galaxies and quasars was perhaps the most important discovery for our understanding of the nature of active galactic nuclei. These proceedings present reviews and research papers on extragalactic radio sources. The book begins witha discussion of the phenomenology and models of radio sources. The main partis devoted to detailed studies of jets by VLBI, to the information obtained about the structure of the central source as deduced from variability studies, to production, confinement and velocity of jets as well as to numerical simulations of the jet phenomenon. Reviews of the two best studied jets - those in the radio galaxy M87 and the quasar 3C273 - illustrate our current observational picture of extragalactic radio jets in all accessible wavelength ranges. A section on the influence of the environment on radio galaxies concludes the book. This topical volume addresses researchers and graduate students in astrophysics.
Jets In Extragalactic Radio Sources
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Author : Hermann-Josef Röser
language : en
Publisher: Springer
Release Date : 2014-03-12
Jets In Extragalactic Radio Sources written by Hermann-Josef Röser and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-12 with Science categories.
The existence of jets emanating from the central sources of radio galaxies and quasars was perhaps the most important discovery for our understanding of the nature of active galactic nuclei. These proceedings present reviews and research papers on extragalactic radio sources. The book begins witha discussion of the phenomenology and models of radio sources. The main partis devoted to detailed studies of jets by VLBI, to the information obtained about the structure of the central source as deduced from variability studies, to production, confinement and velocity of jets as well as to numerical simulations of the jet phenomenon. Reviews of the two best studied jets - those in the radio galaxy M87 and the quasar 3C273 - illustrate our current observational picture of extragalactic radio jets in all accessible wavelength ranges. A section on the influence of the environment on radio galaxies concludes the book. This topical volume addresses researchers and graduate students in astrophysics.
Jets In Extragalactic Radio Sources
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Author : Hermann-Josef Röser
language : en
Publisher:
Release Date : 1993-01-01
Jets In Extragalactic Radio Sources written by Hermann-Josef Röser and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-01-01 with Astronomy categories.
The existence of jets emanating from the central sources of radio galaxies and quasars was perhaps the most important discovery for our understanding of the nature of active galactic nuclei. These proceedings present reviews and research papers on extragalactic radio sources. The book begins witha discussion of the phenomenology and models of radio sources. The main partis devoted to detailed studies of jets by VLBI, to the information obtained about the structure of the central source as deduced from variability studies, to production, confinement and velocity of jets as well as to numerical simulations of the jet phenomenon. Reviews of the two best studied jets - those in the radio galaxy M87 and the quasar 3C273 - illustrate our current observational picture of extragalactic radio jets in all accessible wavelength ranges. A section on the influence of the environment on radio galaxies concludes the book. This topical volume addresses researchers and graduate students in astrophysics.
Astrophysical Jets
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Author : D. Burgarella
language : en
Publisher: Cambridge University Press
Release Date : 1993-11-11
Astrophysical Jets written by D. Burgarella 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 1993-11-11 with Science categories.
A collection of edited review articles presented at a workshop at the Space Telescope Science Institute which gathered astrophysicists from the fields of extragalactic and galactic/stellar jets.
Relativistic Jets From Active Galactic Nuclei
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Author : Markus Boettcher
language : en
Publisher: John Wiley and Sons
Release Date : 2012-02-13
Relativistic Jets From Active Galactic Nuclei written by Markus Boettcher and has been published by John Wiley and Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-13 with Science categories.
Written by a carefully selected consortium of researchers working in the field, this book fills the gap for an up-to-date summary of the observational and theoretical status. As such, this monograph includes all used wavelengths, from radio to gamma, the FERMI telescope, a history and theory refresher, and jets from gamma ray bursts. For astronomers, nuclear physicists, and plasmaphysicists.
Astrophysical Jets
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Author : A. Ferrari
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Astrophysical Jets written by A. Ferrari 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 2012-12-06 with Science categories.
Attilio Ferrari I want to recall here the basic points I raised at the beginning of the Workshop as the main targets of discussion (in the name of the Scientific Committee). I attempted to focus the attention of participants on the fact that, in many instances, we tend to discuss jets in terms of simple physics, more or less as one did at the time extragalactic radio sources were discovered: for instance, we still use equipartition arguments. However, we must realize that processes in jets, leading to their morphologies and energetics clearly depend on complex plasma phenomena. Therefore, the same standard arguments used to derive characteristic parameters should be questioned; some of the speakers were invited to attempt a critical analysis of this point, an~ in fact I believe that this "inquisitive attitude" was actually present all along the Workshop. Observers were asked to choose the parameters to be used in a statistical sample of jets. For this they were urged, first of all, to distinguish between primary and secondary features. For instance, are knots and wiggles common to all jets? Are relativistic flow velocities expected in all active nuclei? Are jets denser or lighter than the external medium? On the theoretical side I asked to discuss whether or not existing models are in accordance with the limited statistical sample that we have today. And which should be the lines of development to be pursued first, and to what extent.
Multifrequency Vlbi Studies Of Compact Extragalactic Jets
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Author : Tuomas Savolainen
language : en
Publisher:
Release Date : 2006
Multifrequency Vlbi Studies Of Compact Extragalactic Jets written by Tuomas Savolainen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.