Parsec Scale Radio Jets
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Parsec Scale Radio Jets
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Author : J. Anton Zensus
language : en
Publisher: Cambridge University Press
Release Date : 1990-08-16
Parsec Scale Radio Jets written by J. Anton Zensus 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 1990-08-16 with Crafts & Hobbies categories.
Quasars and active galaxies are the most powerful emitters of radiation in the universe. Modern radio telescope arrays have shown that the ultimate energy source resides in the central few parsecs of the galactic nucleus, and powers the emitting regions by way of two oppositely-directed relativistic jets of energy. This volume presents the latest observations and theories of these remarkable objects. Topics discussed include superluminal motions, the physics of jets and shock fronts in jets, related optical observations, and cosmic evolution. Particular attention is given to the "unified theories," which attempt to show that many of the phenomena in powerful extragalactic objects are different aspects of a single, basic mechanism; the main difference in their appearance is a result of their different orientation with respect to the observer.
Parsec Scale Radio Jets
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Author : J. Anton Zensus
language : en
Publisher:
Release Date : 1990
Parsec Scale Radio Jets written by J. Anton Zensus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Radio astronomy categories.
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.
Observations And Simulations Of Parsec Scale Jets In Active Galactic Nuclei
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Author : Amy Jo Mioduszewski
language : en
Publisher:
Release Date : 1996
Observations And Simulations Of Parsec Scale Jets In Active Galactic Nuclei written by Amy Jo Mioduszewski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Active galactic nuclei categories.
Jets From Stars And Galactic Nuclei
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Author : Wolfgang Kundt
language : en
Publisher: Springer
Release Date : 2007-01-05
Jets From Stars And Galactic Nuclei written by Wolfgang Kundt and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-05 with Science categories.
Jets are ubiquitous in the Universe, but ill-understood. Conservative books base their interpretations on focused stellar winds, ejected "bullets", black-hole central engines, and in-situ upgrading of electron energies via shocks. This volume, however, attempts a uniform interpretation of the bipolar-flow family, involving extremely relativistic pair plasma as the jet substance, and rotating magnets (possibly burning disks) as the central engines. Among the discussed sources are SS 433, YSO jets, planetary nebulae, our galactic center, and the class of extragalactic QSOs, both radio-loud and radio-quiet.
High Sensitivity Radio Astronomy
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Author : N. Jackson
language : en
Publisher: Cambridge University Press
Release Date : 1997-01-28
High Sensitivity Radio Astronomy written by N. Jackson 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 1997-01-28 with Science categories.
Enhanced sensitivity radio telescopes are producing dramatic results. An international conference was held in Jodrell Bank to take stock of these advances. This timely volume presents the review articles presented by a host of world experts who gathered at this meeting. We are shown how high sensitivity is advancing our understanding in radio spectral line analysis, radio continuum observations of galaxies, cosmology, pulsars, and radio emission from stars; what new and enhanced instruments are now available and those planned for the future. This volume provides graduate students and researchers with an up-to-date and wide-ranging review of the new and future research possible with high-sensitivity radio telescopes.
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
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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
Current High Energy Emission Around Black Holes
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Author : Chang-Hwan Lee
language : en
Publisher: World Scientific
Release Date : 2002-05-24
Current High Energy Emission Around Black Holes written by Chang-Hwan Lee and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-05-24 with Accretion (Astrophysics) categories.
Black holes exist in galactic nuclei and in some X-ray binaries found in our own galaxy and the large Magellanic Cloud. This volume focuses on astrophysical high-energy emission processes around black holes, and the development of theoretical frameworks for interesting observational results. Contents: Black Hole ObservationsAccretion Disk/Formation of JetsEnergy Extraction from Rotating Black HolesSupernova and Gamma Ray BurstsBlack Hole Astrophysics Readership: Graduate students, post-docs and academics in astrophysics, astronomy, cosmology and high energy physics. Keywords:Black Hole;Accretion Disk;Active Galactic Nuclei;Supernovae;Hypernovae;Jets;Gamma-Ray Bursts
Quasars And Active Galactic Nuclei
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Author : Ajit K. Kembhavi
language : en
Publisher: Cambridge University Press
Release Date : 1999-03-11
Quasars And Active Galactic Nuclei written by Ajit K. Kembhavi 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 1999-03-11 with Science categories.
The latest observations and theoretical models are combined in this clear, pedagogic textbook for advanced undergraduates and graduate students.