Internal Dynamics and Formation of Spectra of Active Galactic Nuclei
Author : Isaac Shlosman
Publisher :
Page : 164 pages
File Size : 13,46 MB
Release : 1984
Category : Active galaxies
ISBN :
Author : Isaac Shlosman
Publisher :
Page : 164 pages
File Size : 13,46 MB
Release : 1984
Category : Active galaxies
ISBN :
Author : Vincenzo Antonuccio-Delogu
Publisher : Cambridge University Press
Page : 219 pages
File Size : 28,12 MB
Release : 2010-10-28
Category : Science
ISBN : 1139492152
During the past decade, convincing evidence has been accumulated concerning the effect of active galactic nuclei (AGN) activity on the internal and external environment of their host galaxies. Featuring contributions from well-respected researchers in the field, and bringing together work by specialists in both galaxy formation and AGN, this volume addresses a number of key questions about AGN feedback in the context of galaxy formation. The topics covered include downsizing and star-formation time scales in massive elliptical galaxies, the connection between the epochs of supermassive black hole growth and galaxy formation and the question of whether AGN and star formation coexist. Authors also discuss key challenging computational problems, including jet-interstellar/intergalactic medium interactions, and both jet- and merging-induced star formation. Suitable for researchers and graduate students in astrophysics, this volume reflects the engaging and lively discussions taking place in this emerging field of research.
Author : Julian H. Krolik
Publisher : Princeton University Press
Page : 632 pages
File Size : 47,77 MB
Release : 2021-03-09
Category : Science
ISBN : 0691227470
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.
Author : A.W. Guthmann
Publisher : Springer
Page : 252 pages
File Size : 24,29 MB
Release : 2008-01-11
Category : Science
ISBN : 354046025X
1. 1 Schematic Picture of AGN Some galaxies are known to emit radiation with extremely high luminosities from a rather small volume in the ??ray, X-ray and UV continuum. Such active cores are the so-called Active Galactic Nuclei (AGN) and the radiation is commonly believed to be a result of gravitational energy released by matter spiraling around 9 a supermassive central black hole of about 10 M (see Fig. 1). Though the central engine which produces the enormous observed activity cannot be resolved observationally, a standard picture of an AGN has gradually emerged to explain the richness of the radiation spectra: • an accretion disk with radius from about 2 to 100 gravitational radii, R , g feeding the central black hole and emitting mainly in the UV and soft X-rays; • the broad line optically emitting clouds (BLR), which seem to be absent in 3 some sources (e. g. FRI, see hereafter) and extend up to a few 10 R from g the center.
Author : Hagai Netzer
Publisher : Cambridge University Press
Page : 369 pages
File Size : 48,53 MB
Release : 2013-09-16
Category : Science
ISBN : 1107021510
A comprehensive introduction to the theory underpinning our study of active galactic nuclei and the ways we observe them.
Author : Itziar Aretxaga
Publisher : World Scientific
Page : 387 pages
File Size : 47,71 MB
Release : 2001-04-24
Category : Science
ISBN : 981449108X
A group of leading experts in the field of starbursts and active galactic nuclei have joined hands to produce this review volume which covers the starburst-AGN connection, and the tests to be carried out with the upcoming new astronomical facilities to ascertain the relevance of both components to the formation and evolution of galaxies.The book is addressed to advanced graduate students and researchers in the fields of active galactic nuclei and young galaxies.
Author : Prof. Dr. Roland Wielen
Publisher : Springer Science & Business Media
Page : 1122 pages
File Size : 29,37 MB
Release : 2013-04-17
Category : Science
ISBN : 366212355X
Author : John Edward Dyson
Publisher : Manchester University Press
Page : 404 pages
File Size : 19,36 MB
Release : 1985
Category : Active galactic nuclei
ISBN : 9780719010972
Author : T. Courvoisier
Publisher :
Page : 436 pages
File Size : 43,20 MB
Release : 1992
Category : Active galaxies
ISBN :
Author : G. Giuricin
Publisher : Springer
Page : 808 pages
File Size : 47,93 MB
Release : 1986-01-31
Category : Science
ISBN :
Proceedings of International Meeting held in Trieste, Italy, April 10-13, 1985