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Radio Galaxies
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Book Synopsis Radio Galaxies by : A. G. Pacholczyk
Download or read book Radio Galaxies written by A. G. Pacholczyk and published by Elsevier. This book was released on 2014-06-20 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio Galaxies: Radiation Transfer, Dynamics, Stability and Evolution of a Synchrotron Plasmon deals with the physics of a region in space containing magnetic field and thermal and relativistic particles (a plasmon). The synchrotron emission and absorption of this region are discussed, along with the properties of its spectrum; its linear and circular polarization; transfer of radiation through such a region; its dynamics and expansion; and interaction with external medium. Comprised of eight chapters, this volume explores the stability, turbulence, and acceleration of particles in a synchrotron plasmon as well as its application to the physics of radio galaxies. The discussion begins with a description of extragalactic radio sources and their properties, followed by an analysis of the emission and absorption of synchrotron radiation. Subsequent chapters focus on the transfer of polarized radiation in a magnetoactive plasma; hydromagnetics and hydromagnetic stability; confinement and structure of extended radio sources; and radio-tail galaxies. The book also considers compact radio sources before concluding with an evaluation of radio source theories. This monograph is addressed primarily to radio astronomers and graduate students working on the interpretation of observational data.
Book Synopsis Radio Galaxies at TeV Energies by : Dorit Glawion
Download or read book Radio Galaxies at TeV Energies written by Dorit Glawion and published by MDPI. This book was released on 2020-05-13 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is common believe that the centers of all galaxies exhibit supermassive black holes with masses ranging from millions up to billions of the mass of our Sun. By accreting surrounding matter, the luminosity of these galactic nuclei can outshine the emission of their host galaxies. If this is the case, they are called active galactic nuclei. Some of these objects eject powerful outflows composed of plasma, called jets. These jets can produce non-thermal radiation which observable across the entire electromagnetic spectrum from radio up to the gamma-ray frequencies. At highest frequencies (TeV range) most of the detected active galaxies have jets directed along or close to the line of sight. However, also galaxies with larger angles to the line of sight showing fascinating features were discovered, in seeming contradiction to traditional models for these so-called radio galaxies. Thus, the latter are of particular importance for understanding active galactic nuclei in general. This Special Issue contains reviews and research articles about the current knowledge of radio galaxies at TeV energies, including observational results and theoretical models. It is intended to guide the interested reader deeper into this fascinating discipline of modern day astronomy.
Book Synopsis Galactic and Extragalactic Radio Astronomy by : E. Bouton
Download or read book Galactic and Extragalactic Radio Astronomy written by E. Bouton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galactic and Extragalactic Radio Astronomy is a fundamental text for graduate students and professional astronomers and covers all aspects of radio astronomy beyond the solar system. Each chapter is written by a renowned expert in the field and contains a review of a particular area of radio astronomy and presents the latest observations and interpretations as well as an extensive view of the literature (as of 1988). Topics covered include: galactic continuum emission, HII regions, the diffuse interstellar medium, interstellar molecules, astronomical masers, neutral hydrogen, the galactic center, radio stars, supernova remnants, pulsars, extragalactic hydrogen, radio galaxies and quasars, the microwave background, and cosmological radio sources.
Book Synopsis Extragalactic Radio Sources by : D.S. Heeschen
Download or read book Extragalactic Radio Sources written by D.S. Heeschen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: IAU Symposium 97, Extragalactic Radio Sources, was held at Albuquerque, New Mexico August 3-7, 1981. It was co-sponsored by IAU Commissions 28, 40, 47 and 48 and by URSI Commission J. Financial and organizational support were provided by the National Radio Astronomy Observatory, the University of New Mexico, and the National Science Foundation. A wide variety of interesting objects and phenomena can be covered under the heading "Extragalactic Radio Sources", and a diverse set of topics was in fact discussed at the symposium. Radio galaxies, quasars, Seyfert galaxies and BL Lacertids received the most attention, but normal galaxies, the galactic center, and even SS433 were also discussed. While the unifying theme of the symposium was radio emission, studies at all wavelengths--X-ray, UV, optical, IR, and radio--were included. In general, the emphasis was on individual objects and the physical processes associated with them, but there were also papers on statistical studies and cosmology. The symposium was attended by 209 scientists from 18 countries.
Book Synopsis Cygnus A - Study of a Radio Galaxy by : C. L. Carilli
Download or read book Cygnus A - Study of a Radio Galaxy written by C. L. Carilli and published by Cambridge University Press. This book was released on 1996-02-29 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and up-to-date review of Cygnus A and what it can teach us about other active galaxies - for graduate students and researchers.
Book Synopsis Extragalactic Radio Sources by : Wolfgang Priester
Download or read book Extragalactic Radio Sources written by Wolfgang Priester and published by . This book was released on 1965 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Frequency Radio Observations of Galaxy Clusters and Groups by : Thérèse Cantwell
Download or read book Low Frequency Radio Observations of Galaxy Clusters and Groups written by Thérèse Cantwell and published by Springer. This book was released on 2018-09-01 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uses new data from the very low radio frequency telescope LOFAR to analyse the magnetic structure in the giant radio galaxy NGC6251. This analysis reveals that the magnetic field strength in the locality of this giant radio galaxy is an order of magnitude lower than in other comparable systems. Due to the observational limitations associated with capturing such huge astrophysical structures, giant radio galaxies are historically a poorly sampled population of objects; however, their preferential placement in the more rarefied regions of the cosmic web makes them a uniquely important probe of large-scale structures. In particular, the polarisation of the radio emissions from giant radio galaxies is one of the few tools available to us that can be used to measure magnetic fields in regions where the strength of those fields is a key differentiator for competing models of the origin of cosmic magnetism. Low frequency polarisation data are crucial for detailed analyses of magnetic structure, but they are also the most challenging type of observational data to work with. This book presents a beautifully coupled description of the technical and scientific analysis required to extract valuable information from such data and, as the new generation of low frequency radio telescopes reveals the larger population of giant radio galaxies, it offers a significant resource for future analyses.
Book Synopsis Theoretical Astrophysics: Volume 3, Galaxies and Cosmology by : T. Padmanabhan
Download or read book Theoretical Astrophysics: Volume 3, Galaxies and Cosmology written by T. Padmanabhan and published by Cambridge University Press. This book was released on 2000 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely volume provides comprehensive coverage of all aspects of cosmology and extragalactic astronomy at an advanced level. Beginning with an overview of the key observational results and necessary terminology, it covers important topics: the theory of galactic structure and galactic dynamics, structure formation, cosmic microwave background radiation, formation of luminous galaxies in the universe, intergalactic medium and active galactic nuclei. This self-contained text has a modular structure, and contains over one hundred worked exercises. It can be used alone, or in conjunction with the previous two accompanying volumes (Volume I: Astrophysical Processes, and Volume II: Stars and Stellar Systems).
Book Synopsis Radio Galaxies at TeV Energies by : Dorit Glawion
Download or read book Radio Galaxies at TeV Energies written by Dorit Glawion and published by . This book was released on 2020 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is common believe that the centers of all galaxies exhibit supermassive black holes with masses ranging from millions up to billions of the mass of our Sun. By accreting surrounding matter, the luminosity of these galactic nuclei can outshine the emission of their host galaxies. If this is the case, they are called active galactic nuclei. Some of these objects eject powerful outflows composed of plasma, called jets. These jets can produce non-thermal radiation which observable across the entire electromagnetic spectrum from radio up to the gamma-ray frequencies. At highest frequencies (TeV range) most of the detected active galaxies have jets directed along or close to the line of sight. However, also galaxies with larger angles to the line of sight showing fascinating features were discovered, in seeming contradiction to traditional models for these so-called radio galaxies. Thus, the latter are of particular importance for understanding active galactic nuclei in general. This Special Issue contains reviews and research articles about the current knowledge of radio galaxies at TeV energies, including observational results and theoretical models. It is intended to guide the interested reader deeper into this fascinating discipline of modern day astronomy.
Download or read book The Radio Universe written by J. S. Hey and published by Pergamon. This book was released on 1983 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quasars and Active Galactic Nuclei by : Ajit K. Kembhavi
Download or read book Quasars and Active Galactic Nuclei written by Ajit K. Kembhavi and published by Cambridge University Press. This book was released on 1999-03-11 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest observations and theoretical models are combined in this clear, pedagogic textbook for advanced undergraduates and graduate students.
Book Synopsis Structure and Evolution of Galaxies by : James Lequeux
Download or read book Structure and Evolution of Galaxies written by James Lequeux and published by Taylor & Francis. This book was released on 1969-03 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Radio Astronomy by : Bernard F. Burke
Download or read book An Introduction to Radio Astronomy written by Bernard F. Burke and published by Cambridge University Press. This book was released on 2019-08-22 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough introduction to radio astronomy and techniques for students and researchers approaching radio astronomy for the first time.
Download or read book Galaxies written by and published by PediaPress. This book was released on with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Nonthermal Radio Sources by : Stephen P. Maran
Download or read book Physics of Nonthermal Radio Sources written by Stephen P. Maran and published by . This book was released on 1964 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cold Gas at High Redshift by : M.N. Bremer
Download or read book Cold Gas at High Redshift written by M.N. Bremer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen increasing evidence that the main epoch of galaxy formation in the universe may be directly accessible to observation. An gular fluctuations in the background relict radiation have been detected by various ground-based instruments as well as by the COBE satellite, and suggest that the epoch of galaxy formation was not so very early. Combined optical and radio studies have found galaxies at redshifts above 2. 0, systems that at least superficially show the characteristics expected of large galaxies seen only shortly after their formation. And absorption lines in the spectra of quasars seem to be telling us that most cold gas at early to intermediate cosmological epochs was in clouds having roughly galaxy sized masses. What kinds of new observations will best help us study this high redshift universe in future? What new instruments will be needed? These are questions that loom large in the minds of the Dutch astronom ical community as we celebrate 25 years of operation of the Westerbork Synthesis Radio Telescope. Celebration of this Silver Jubilee has included a birthday party (on 23 June, 1995), a commemorative volume looking at both the history and the future of the facility ("The Westerbork Observa tory, Continuing Adventure in Radio Astronomy," Kluwer 1996), and an international workshop, held in the village of Hoogeveen on 28-30 August, 1995.
Book Synopsis Physics of Nonthermal Radio Sources by : Goddard Institute for Space Studies
Download or read book Physics of Nonthermal Radio Sources written by Goddard Institute for Space Studies and published by . This book was released on 1964 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
