Active Galactic Nuclei And Related Phenomena

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Active Galactic Nuclei

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Author : Julian H. Krolik
language : en
Publisher: Princeton University Press
Release Date : 1999-01-10

Active Galactic Nuclei written by Julian H. Krolik and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-10 with Science categories.

This is the first comprehensive treatment of active galactic nuclei--the cosmic powerhouses at the core of many distant galaxies. The term active galactic nuclei refers to quasars, radio galaxies, Seyfert galaxies, blazars, and related objects, all of which are believed to share a similar central engine--a supermassive black hole many times the mass of the Sun. Astrophysicists have studied these phenomena for the past several decades and have begun to develop a consensus about many of their properties and internal mechanisms. Julian Krolik, one of the world's leading authorities on the subject, sums up leading ideas from across the entire range of research, making this book an invaluable resource for astronomers, physicists interested in applications of the theory of gravitation, and graduate students. Krolik begins by addressing basic questions about active galactic nuclei: What are they? How can they be found? How do they evolve? He assesses the evidence for massive black holes and considers how they generate power by accretion. He discusses X-ray and g-ray emission, radio emission and jets, emission and absorption lines, anisotropic appearance, and the relationship between an active nucleus and its host galaxy. He explores the mysteries of what ignites, fuels, and extinguishes active galactic nuclei, and concludes with a general review of where the field now stands. The book is unique in paying careful attention to relevant physics as well as astronomy, reflecting in part the importance of general relativity to understanding active galactic nuclei. Clear, authoritative, and detailed, this is crucial reading for anyone interested in one of the most dynamic areas of astrophysics today.

The Physics And Evolution Of Active Galactic Nuclei

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Author : Hagai Netzer
language : en
Publisher: Cambridge University Press
Release Date : 2013-09-16

The Physics And Evolution Of Active Galactic Nuclei written by Hagai Netzer 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 2013-09-16 with Science categories.

A comprehensive introduction to the theory underpinning our study of active galactic nuclei and the ways we observe them.

An Introduction To Active Galactic Nuclei

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Author : Bradley M. Peterson
language : en
Publisher: Cambridge University Press
Release Date : 1997-02-13

An Introduction To Active Galactic Nuclei written by Bradley M. Peterson 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 1997-02-13 with Science categories.

How can we test if a supermassive black hole lies at the heart of every active galactic nucleus? What are LINERS, BL Lacs, N galaxies, broad-line radio galaxies and radio-quiet quasars and how do they compare? This timely textbook answers these questions in a clear, comprehensive and self-contained introduction to active galactic nuclei - for graduate students in astronomy and physics. The study of AGN is one of the most dynamic areas of contemporary astronomy, involving one fifth of all research astronomers. This textbook provides a systematic review of the observed properties of AGN across the entire electromagnetic spectrum, examines the underlying physics, and shows how the brightest AGN, quasars, can be used to probe the farthest reaches of the Universe. This book serves as both an entry point to the research literature and as a valuable reference for researchers in the field.

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.

Current High Energy Emission Around Black Holes

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Author : H?n-y?ng Chang
language : en
Publisher: World Scientific
Release Date : 2002

Current High Energy Emission Around Black Holes written by H?n-y?ng Chang 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 with Science 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 Observations; Accretion Disk/Formation of Jets; Energy Extraction from Rotating Black Holes; Supernova and Gamma Ray Bursts; Black Hole Astrophysics. Readership: Graduate students, post-docs and academics in astrophysics, astronomy, cosmology and high energy physics.

Cosmic Rays At Earth

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Author : P.K.F. Grieder
language : en
Publisher: Elsevier
Release Date : 2001-07-27

Cosmic Rays At Earth written by P.K.F. Grieder and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-07-27 with Science categories.

In 1912 Victor Franz Hess made the revolutionary discovery that ionizing radiation is incident upon the Earth from outer space. He showed with ground-based and balloon-borne detectors that the intensity of the radiation did not change significantly between day and night. Consequently, the sun could not be regarded as the sources of this radiation and the question of its origin remained unanswered. Today, almost one hundred years later the question of the origin of the cosmic radiation still remains a mystery.Hess' discovery has given an enormous impetus to large areas of science, in particular to physics, and has played a major role in the formation of our current understanding of universal evolution. For example, the development of new fields of research such as elementary particle physics, modern astrophysics and cosmology are direct consequences of this discovery. Over the years the field of cosmic ray research has evolved in various directions: Firstly, the field of particle physics that was initiated by the discovery of many so-called elementary particles in the cosmic radiation. There is a strong trend from the accelerator physics community to reenter the field of cosmic ray physics, now under the name of astroparticle physics. Secondly, an important branch of cosmic ray physics that has rapidly evolved in conjunction with space exploration concerns the low energy portion of the cosmic ray spectrum. Thirdly, the branch of research that is concerned with the origin, acceleration and propagation of the cosmic radiation represents a great challenge for astrophysics, astronomy and cosmology. Presently very popular fields of research have rapidly evolved, such as high-energy gamma ray and neutrino astronomy. In addition, high-energy neutrino astronomy may soon initiate as a likely spin-off neutrino tomography of the Earth and thus open a unique new branch of geophysical research of the interior of the Earth. Finally, of considerable interest are the biological and medical aspects of the cosmic radiation because of it ionizing character and the inevitable irradiation to which we are exposed. This book is a reference manual for researchers and students of cosmic ray physics and associated fields and phenomena. It is not intended to be a tutorial. However, the book contains an adequate amount of background materials that its content should be useful to a broad community of scientists and professionals. The present book contains chiefly a data collection in compact form that covers the cosmic radiation in the vicinity of the Earth, in the Earth's atmosphere, at sea level and underground. Included are predominantly experimental but also theoretical data. In addition the book contains related data, definitions and important relations. The aim of this book is to offer the reader in a single volume a readily available comprehensive set of data that will save him the need of frequent time consuming literature searches.

Astronomy And Astrophysics

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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1988-02-01

Astronomy And Astrophysics written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-02-01 with Science categories.

The Formation Of Stars

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Author : Steven W. Stahler
language : en
Publisher: John Wiley & Sons
Release Date : 2008-07-11

The Formation Of Stars written by Steven W. Stahler and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-11 with Science categories.

This book is a comprehensive treatment of star formation, one of the most active fields of modern astronomy. The reader is guided through the subject in a logically compelling manner. Starting from a general description of stars and interstellar clouds, the authors delineate the earliest phases of stellar evolution. They discuss formation activity not only in the Milky Way, but also in other galaxies, both now and in the remote past. Theory and observation are thoroughly integrated, with the aid of numerous figures and images. In summary, this volume is an invaluable resource, both as a text for physics and astronomy graduate students, and as a reference for professional scientists.

High Energy Astrophysics Volume 1 Particles Photons And Their Detection

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Author : M. S. Longair
language : en
Publisher: Cambridge University Press
Release Date : 1992-02-27

High Energy Astrophysics Volume 1 Particles Photons And Their Detection written by M. S. Longair 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 1992-02-27 with Science categories.

Volume 1.

Genesis

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Author : Guido Tonelli
language : en
Publisher: Profile Books
Release Date : 2021-03-18

Genesis written by Guido Tonelli and has been published by Profile Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-18 with Science categories.

'Mind-inflating' Wired 'A grand vision of the marvels we've discovered, and the immensity of what we still don't understand' Sunday Times What if the ancient Greeks were right, and the universe really did spring into being out of chaos and the void? How could we know? And what must its first moments have been like? To answer these questions, scientists are delving into all the hidden crevices of creation. Armed with giant telescopes and powerful particle accelerators, they probe the subtle mechanisms by which our familiar world came to be, and try to foretell the manner in which it will end. The result of all this collective effort is a complex tale, stranger at times than even our most ancient creation myths. Yet its building blocks give us the power to work marvels our predecessors could scarcely comprehend. In Genesis, the CERN physicist and bestselling author Guido Tonelli does poetic justice to that great story, the accomplishment of countless minds working together across the ages.