Druck auf Anfrage Neuware - Printed after ordering - The study of the physical processes at work in Active Galactic Nuclei (AGN) has kept a large number of astronomers busy since the discovery, in the early sixties, of the rst radio galaxies and quasars. After a few decades of debate there is now a clear consensus about the source of energy in AGN, namely gravitational energy released through matter accretion onto a massive black hole. The most commonly accepted ideas regarding AGN are pictured in the so-called AGN uni ed model, although one should remember that this is still a 'working' model. Tremendous progress has been made in unveiling, analyzing, and modeling the di erent components in AGN: the accretion disk, the jets of relativistic particles, the x-ray absorber close to the central engine,the'torus'thatfunnelstheionizingradiation,thesurroundingclouds of dense material in the broadline region and narrowline region, the cool molecular and dusty material around the torus, as well as jet-induced e ects on larger scales. Yet, it remains to incorporate all these components and physical processes into a self-consistent AGN model that would take into account, and predict, all the facets of AGN activity. The mere process of matter fueling is far from being totally understood and neither is the link of the AGN with its host galaxy. The birth and growth of massive black holes in the universe is a related question to be investigated and is of prime interest for cosmology. N� de ref. del art�culo 9783642068331

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T�tulo: Physics of Active Galactic Nuclei at all ...

Editorial: Springer Berlin Heidelberg

A�o de publicaci�n: 2010

Encuadernaci�n: Taschenbuch

Condici�n: Neu

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Sinopsis:

The study of the physical processes at work in Active Galactic Nuclei (AGN) has kept a large number of astronomers busy since the discovery, in the early sixties, of the ?rst radio galaxies and quasars. After a few decades of debate there is now a clear consensus about the source of energy in AGN, namely gravitational energy released through matter accretion onto a massive black hole. The most commonly accepted ideas regarding AGN are pictured in the so-called AGN uni?ed model, although one should remember that this is still a “working” model. Tremendous progress has been made in unveiling, analyzing, and modeling the di?erent components in AGN: the accretion disk, the jets of relativistic particles, the x-ray absorber close to the central engine,the“torus”thatfunnelstheionizingradiation,thesurroundingclouds of dense material in the broadline region and narrowline region, the cool molecular and dusty material around the torus, as well as jet-induced e?ects on larger scales. Yet, it remains to incorporate all these components and physical processes into a self-consistent AGN model that would take into account, and predict, all the facets of AGN activity. The mere process of matter fueling is far from being totally understood and neither is the link of the AGN with its host galaxy. The birth and growth of massive black holes in the universe is a related question to be investigated and is of prime interest for cosmology.

De la contraportada:

The energy source in Active Galactic Nuclei is commonly accepted to be gravitational and released through accretion of matter onto a supermassive black hole. Since the discovery of the first radio galaxies and quasars in the early sixties, tremendous progress has been made in unveiling, analyzing and modelling the different components in AGN: the accretion disk, the jets of relativistic particles, the X-ray absorber close to the central engine, the "torus" which funnels the ionizing radiation, the surrounding clouds of dense material in the broad-line region and narrow-line region, the cool molecular and dusty material around the torus, as well as jet-induced effects on larger scales. Yet, it remains to incorporate all these components and physical processes within a self-consistent AGN model that would take into account, and predict, all the facets of observed AGN activity. Besides discussing the elements of this "Unified Model of AGN," this book also addresses the still not-entirely-understood link of an AGN with its host galaxy and also the related question of the birth and growth of massive black holes in the universe, which is of prime interest for cosmology.

The collection of lecture notes in this volume written by recognized experts in the field of Active Galactic Nuclei address students and young researchers. They are aimed at providing both an introduction and at the same time an overview of the state of the art of AGN research.

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