Physics of Energy Transport in Extragalactic Radio Sources

Physics of Energy Transport in Extragalactic Radio Sources PDF Author: Alan H. Bridle
Publisher:
ISBN:
Category : Astrophysical jets
Languages : en
Pages : 330

Get Book Here

Book Description

Physics of Energy Transport in Extragalactic Radio Sources

Physics of Energy Transport in Extragalactic Radio Sources PDF Author: Alan H. Bridle
Publisher:
ISBN:
Category : Astrophysical jets
Languages : en
Pages : 330

Get Book Here

Book Description


Literature 1985, Part 1

Literature 1985, Part 1 PDF Author: S. Böhme
Publisher: Springer Science & Business Media
ISBN: 3662123525
Category : Science
Languages : en
Pages : 1157

Get Book Here

Book Description
Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 39 records literature published in 1985 and received before August 15, 1985. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organiza tions, observatories, and publishers which provide us with complimentary copies of their publications. On account of the introduction of an object index the scope of index information will be considerably enlarged beginning with this volume. In connection with the subject index an additional source to satisfy the needs of retrieval is opened up. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura, Ms. Monika Kohl, Ms. Sylvia Matyssek. Ms. Karin Burkhardt, Ms. Susanne Schlotelburg, and Mr. Stefan Wagner supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, September 1985 The Editors Contents Introduction . . . . . . . . . . . .

The Physics of Extragalactic Radio Sources

The Physics of Extragalactic Radio Sources PDF Author: David De Young
Publisher: University of Chicago Press
ISBN: 9780226144153
Category : Science
Languages : en
Pages : 588

Get Book Here

Book Description
Extragalactic radio sources are among the most unusual and spectacular objects in the universe, with sizes in excess of millions of light years, radiated energies over ten times those of normal galaxies, and a unique morphology. They reveal some of the most dramatic physical events ever seen and provide essential clues to the basic evolutionary tracks followed by all galaxies and groups of galaxies. In The Physics of Extragalactic Radio Sources, David De Young provides a clearly written overview of what is currently known about these objects. A unique feature of the book is De Young's emphasis on the physical processes associated with extragalactic radio sources: their evolution, their environment, and their use as probes to solve other astrophysical problems. He also makes extensive use of the large amount of data now available from observations at x-ray, optical, and radio wavelengths to illustrate his main points. The Physics of Extragalactic Radio Sources will be a comprehensive introduction to the field for graduate students and a useful summary for astrophysicists.

Energy Transport in Radio Galaxies and Quasars

Energy Transport in Radio Galaxies and Quasars PDF Author: Philip E. Hardee
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 504

Get Book Here

Book Description


Parsec-Scale Radio Jets

Parsec-Scale Radio Jets PDF Author: J. Anton Zensus
Publisher: Cambridge University Press
ISBN: 9780521392266
Category : Crafts & Hobbies
Languages : en
Pages : 430

Get Book Here

Book Description
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.

Los Alamos Science

Los Alamos Science PDF Author:
Publisher:
ISBN:
Category : Laboratories
Languages : en
Pages : 954

Get Book Here

Book Description


Multiwavelength Approach to Unidentified Gamma-Ray Sources

Multiwavelength Approach to Unidentified Gamma-Ray Sources PDF Author: K.S. Cheng
Publisher: Springer Science & Business Media
ISBN: 140203881X
Category : Science
Languages : en
Pages : 436

Get Book Here

Book Description
Nearly one half of the point-like gamma-ray sources detected by EGRET instrument of the late Compton satellite are still defeating our attempts at identifying them. To establish the origin and nature of these enigmatic sources has become a major problem of current high-energy astrophysics. The second workshop on Multiwavelength Approach to Unidentified Gamma-ray Sources intends to shed new and fresh light on the problem of the nature of the unidentified gamma-ray sources. The proceedings contain 46 contributed papers in this subject, which cover theoretical models on gamma-ray sources as well as the best multiwavelength strategies for the identification of the promising candidates. The topics of this conference also include energetic phenomena occurring both in galactic and extragalactic scenarios, phenomena that might lead to the appearance of what we have called high-energy unidentified sources. The book will be of interest for all active researchers in the high-energy astrophysics and related research areas as well as for scientists and graduate students interested in understanding the recent progress in high-energy astrophysics.

Cygnus A - Study of a Radio Galaxy

Cygnus A - Study of a Radio Galaxy PDF Author: C. L. Carilli
Publisher: Cambridge University Press
ISBN: 9780521553438
Category : Science
Languages : en
Pages : 314

Get Book Here

Book Description
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.

Astrophysical Jets and Their Engines

Astrophysical Jets and Their Engines PDF Author: Wolfgang Kundt
Publisher: Springer Science & Business Media
ISBN: 9400939272
Category : Science
Languages : en
Pages : 265

Get Book Here

Book Description
This volume is the documentation of the first Course on 'Neutron Stars, Active Galactic Nuclei and Jets', of an Erice School with a wide astro physical scope. The choice of the subject was made because of an apparent similari ty - stressed already at earlier meetings - of four classes of astrophy sical jet sources: Active Galactic Nuclei, Young Stellar Objects, Binary Neutron Stars and Binary White Dwarfs. They share important properties such as their morphology, high variability and large veloci ty gradients as well as - with some inference - their broad spectrum, hypersonic outflow and core/lobe power ratio. Despite this apparent similarity of the four source classes, quite different models have been put forward for their description: (i) The central engine of active galactic nuclei has been generally thought to be a black hole, in contrast to the central engine of young stellar objects and cometary nebulae which apparently is a pre-T-Tauri star, some six orders of magnitude less compact, and to the central engine of planetary nebulae which mayor may not be a binary white dwarf. (ii) The elongated lobes, or flow patterns, have been often interpreted as highly directional stellar wind outflows whereas in a few well mapped cases, the elongated flow appears to be 'pumped up' through a much narrower channel, or jet, both in the extragalactic and stellar sources.

An Introduction to Astrophysical Hydrodynamics

An Introduction to Astrophysical Hydrodynamics PDF Author: Steven N. Shore
Publisher: Academic Press
ISBN: 0323139922
Category : Science
Languages : en
Pages : 469

Get Book Here

Book Description
This book is an introduction to astrophysical hydrodynamics for both astronomy and physics students. It provides a comprehensive and unified view of the general problems associated with fluids in a cosmic context, with a discussion of fluid dynamics and plasma physics. It is the only book on hydrodynamics that addresses the astrophysical context. Researchers and students will find this work to be an exceptional reference. Contents include chapters on irrotational and rotational flows, turbulence, magnetohydrodynamics, and instabilities.