Structure and Evolution of Active Galactic Nuclei

Structure and Evolution of Active Galactic Nuclei PDF Author:
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 772

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Book Description

Structure and Evolution of Active Galactic Nuclei

Structure and Evolution of Active Galactic Nuclei PDF Author:
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 772

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Book Description


The Physics and Evolution of Active Galactic Nuclei

The Physics and Evolution of Active Galactic Nuclei PDF Author: Hagai Netzer
Publisher: Cambridge University Press
ISBN: 1107021510
Category : Science
Languages : en
Pages : 369

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Book Description
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

An Introduction to Active Galactic Nuclei PDF Author: Bradley M. Peterson
Publisher: Cambridge University Press
ISBN: 9780521479110
Category : Science
Languages : en
Pages : 258

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Book Description
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.

The Physics and Evolution of Active Galactic Nuclei

The Physics and Evolution of Active Galactic Nuclei PDF Author: Hagai Netzer
Publisher:
ISBN: 9781107301467
Category : Active galactic nuclei
Languages : en
Pages : 378

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Book Description
"Research into active galactic nuclei (AGN) - the compact, luminous hearts of many galaxies - is at the forefront of modern astrophysics. Understanding these objects requires extensive knowledge in many different areas: accretion disks, the physics of dust and ionized gas, astronomical spectroscopy, star formation, and the cosmological evolution of galaxies and black holes. This new text by Hagai Netzer, a renowned astronomer and leader in the field, provides a comprehensive introduction to the theory underpinning our study of AGN and the ways that we observe them. It emphasizes the basic physics underlying AGN, the different types of active galaxies and their various components, and the complex interplay between them and other astronomical objects. Recent developments regarding the evolutionary connections between active galaxies and star-forming galaxies are explained in detail. Both graduate students and researchers will benefit from Netzer's authoritative contributions to this exciting field of research"--

Big Bang, Active Galactic Nuclei, and Supernovae (Paper)

Big Bang, Active Galactic Nuclei, and Supernovae (Paper) PDF Author: S. Hayakawa
Publisher:
ISBN:
Category : Active galaxies
Languages : en
Pages : 642

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Book Description


Extragalactic Astronomy and Cosmology

Extragalactic Astronomy and Cosmology PDF Author: Peter Schneider
Publisher: Springer Science & Business Media
ISBN: 3540331751
Category : Science
Languages : en
Pages : 462

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Book Description
This book outlines the fundamentals of this fascinating branch of astronomy, and explores the forefront of astronomical research. The author’s passion for the topic shines with an intensity that rivals the book’s many colourful illustrations, and will deeply inspire the reader. The cogently written text introduces the reader to the astronomy of galaxies, their structure, their active galactic nuclei, their evolution and their large scale distribution. Starting with a detailed description of our Milky Way, and a review of modern observational and theoretical cosmology, the book goes on to examine the formation of structures and astronomical objects in the early universe.

Active Galactic Nuclei

Active Galactic Nuclei PDF Author: Francoise Combes
Publisher: John Wiley & Sons
ISBN: 178945087X
Category : Science
Languages : en
Pages : 324

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Book Description
All galaxies host a super-massive black hole in their center. These black holes grow their mass in symbiosis with their host galaxy and moderate their star formation. When matter is driven towards the nucleus, an accretion disk is formed to transfer angular momentum and considerable energy is released when the material falls into the black hole: this is the phenomenon of active galactic nuclei (AGN). A nucleus can shine one thousand times more brightly than the entire galaxy with its 200 billion stars. The nuclear activity can take many forms, from very powerful quasars to more ordinary Seyfert galaxies, passing by radio-galaxies, which eject a collimated plasma at ten times the radius of the galaxy. This book examines all of these manifestations and presents a unified view. When two galaxies merge, a binary black hole is formed and the two black holes will spiral inwards and merge, emitting long gravitational waves, which could be detected by the future LISA satellite.

Active Galactic Nuclei

Active Galactic Nuclei PDF Author: Volker Beckmann
Publisher: John Wiley & Sons
ISBN: 3527410783
Category : Science
Languages : en
Pages : 390

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Book Description
Active Galactic Nuclei This AGN textbook gives an overview on the current knowledge of the Active Galacitc Nuclei phenomenon. The spectral energy distribution will be discussed, pointing out what can be observed in different wavebands. The different physical models are presented together with formula important for the understanding of AGN physics. Furthermore, the authors discuss the AGN with respect to its environment, host galaxy, feedback in galaxies and in clusters of galaxies, variability, etc. and finally the cosmological evolution of the AGN phenomenon. This book includes phenomena based on new results in the X-Ray and gamma-ray domain from new telescopes such as Chandra, XMM-Newton, the Fermi Gamma-Ray Space Telescope, and the VHE regime not mentioned so far in AGN books. Those and other new developments as well as simulations of AGN merging events and formations, enabled through latest super-computing capabilities. From the contents: The observational picture of AGN Radiative processes The central engine AGN types and unification AGN through the electromagnetic spectrum AGN variability Environment Quasars and cosmology Formation, evolution and the ultimate fate of AGN What we do not know (yet)

The Evolution of Active Galactic Nuclei

The Evolution of Active Galactic Nuclei PDF Author: Laurence Paul David
Publisher:
ISBN:
Category : Active galactic nuclei
Languages : en
Pages : 274

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Book Description


Active Galactic Nuclei

Active Galactic Nuclei PDF Author: Julian H. Krolik
Publisher: Princeton University Press
ISBN: 0691227470
Category : Science
Languages : en
Pages : 632

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Book Description
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.