Supermassive Black Holes In Peculiar Galaxies
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Supermassive Black Holes In Peculiar Galaxies
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Author : Nina Nowak
language : en
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
Release Date : 2010-04
Supermassive Black Holes In Peculiar Galaxies written by Nina Nowak and has been published by Sudwestdeutscher Verlag Fur Hochschulschriften AG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04 with categories.
Supermassive black holes reside in the centres of all normal nearby galaxies. Their masses correlate strongly with several properties of the host galaxy, such as the bulge velocity dispersion and the bulge luminosity. This shows that galaxy evolution and black hole growth must be strongly linked. It remains an open question whether these correlations are also valid for galaxies at the extreme low and high-mass ends, galaxies with a pseudobulge and merger remnants. Nina Nowak measured supermassive black hole masses in the centres of four such galaxies using stellar dynamics. All measurements are based on observations with the adaptive-optics assisted, near-infrared integral-field spectrograph SINFONI at the European Southern Observatory's Very Large Telescope on Cerro Paranal, Chile. The results imply that the bulge velocity dispersion is always a good indicator of the central black hole mass, independent of galaxy type. The bulge luminosity, however, only seems to be a good mass inidicator for old classical bulges.
Supermassive Black Holes In The Distant Universe
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Author : A.J. Barger
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-09
Supermassive Black Holes In The Distant Universe written by A.J. Barger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-09 with Science categories.
Quasars, and the menagerie of other galaxies with "unusual nuclei", now collectively known as Active Galactic Nuclei or AGN, have, in one form or another, sparked the interest of astronomers for over 60 years. The only known mechanism that can explain the staggering amounts of energy emitted by the innermost regions of these systems is gravitational energy release by matter falling towards a supermassive black hole --- a black hole whose mass is millions to billions of times the mass of our Sun. AGN emit radiation at all wavelengths. X-rays originating at a distance of a few times the event horizon of the black hole are the emissions closest to the black hole that we can detect; thus, X-rays directly reveal the presence of active supermassive black holes. Oftentimes, however, the supermassive black holes that lie at the centers of AGN are cocooned in gas and dust that absorb the emitted low energy X-rays and the optical and ultraviolet light, hiding the black hole from view at these wavelengths. Until recently, this low-energy absorption presented a major obstacle in observational efforts to map the accretion history of the universe. In 1999 and 2000, the launches of the Chandra and XMM-Newton X-ray Observatories finally broke the impasse. The impact of these observatories on X-ray astronomy is similar to the impact that the Hubble Space Telescope had on optical astronomy. The astounding new data from these observatories have enabled astronomers to make enormous advances in their understanding of when accretion occurs.
Supermassive Black Holes
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Author : Minas Kafatos
language : en
Publisher: CUP Archive
Release Date : 1988-02-18
Supermassive Black Holes written by Minas Kafatos and has been published by CUP Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-02-18 with Science categories.
Black Holes Iau S238
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Author : International Astronomical Union. Symposium
language : en
Publisher: Cambridge University Press
Release Date : 2007-07-30
Black Holes Iau S238 written by International Astronomical Union. Symposium 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 2007-07-30 with Science categories.
IAU S238 report on the physics of black holes, by leading researchers in the field.
Coevolution Of Black Holes And Galaxies Volume 1 Carnegie Observatories Astrophysics Series
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Author : Luis C. Ho
language : en
Publisher: Cambridge University Press
Release Date : 2004-09-09
Coevolution Of Black Holes And Galaxies Volume 1 Carnegie Observatories Astrophysics Series written by Luis C. Ho 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 2004-09-09 with Science categories.
This book was originally published in 2004. Black holes are among the most mysterious objects in the Universe. Weighing up to several billion Suns, massive black holes have long been suspected to be the central powerhouses of energetic phenomena such as quasars. Advances in astronomy have not only provided spectacular proof of this long-standing paradigm, but have revealed the unexpected result that far from being rare, exotic beasts, they inhabit the center of virtually all large galaxies. Candidate black holes have been identified in increasingly large numbers of galaxies, both inactive and active, to the point where statistical studies are possible. Fresh work has highlighted the close connection between the formation, growth, and evolution of supermassive black holes and their host galaxies. This volume contains the invited lectures from an international symposium that was held to explore this exciting theme, and is a valuable review for professional astronomers and graduate students.
Black Holes
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Author : Mario Livio
language : en
Publisher: Cambridge University Press
Release Date : 2011-02-24
Black Holes written by Mario Livio 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 2011-02-24 with Science categories.
Black holes, once considered to be of purely theoretical interest, play an important role in observational astronomy and a range of astrophysical phenomena. This volume is based on a meeting held at the Space Telescope Science Institute, which explored the many aspects of black hole astrophysics. Written by world experts in areas of stellar-mass, intermediate-mass and supermassive black holes, these review papers provide an up-to-date overview of developments in this field. Topics discussed range from black hole entropy and the fate of information to supermassive black holes at the centers of galaxies, and from the possibility of producing black holes in collider experiments to the measurements of black hole spins. This is an invaluable resource for researchers currently working in the field, and for graduate students interested in this active and growing area of research.
The Galactic Supermassive Black Hole
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Author : Fulvio Melia
language : en
Publisher: Princeton University Press
Release Date : 2020-12-08
The Galactic Supermassive Black Hole written by Fulvio Melia 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 2020-12-08 with Science categories.
Here, one of the world's leading astrophysicists provides the first comprehensive and logically structured overview of the many ideas and discoveries pertaining to the supermassive black hole at the galactic center known as Sagittarius A*. By far the closest galactic nucleus in the universe, Sagittarius A* alone can provide us with a realistic expectation of learning about the physics of strong gravitational fields, and the impact of such fields on the behavior of matter and radiation under severe physical conditions. Its proximity may even provide the opportunity to directly test one of general relativity's most enigmatic predictions--the existence of closed pockets of space-time hidden behind an event horizon. The plethora of research on Sagittarius A* since its discovery in 1974 has long seemed an interwoven pattern of loose threads. No one has successfully synthesized this growing body of work into a manageable, coherent book both for professional researchers and for students taking courses focusing on black holes and galactic nuclei--until now. With Fulvio Melia's The Galactic Supermassive Black Hole, readers finally have at their disposal a one-volume crucible of essential ideas, logically streamlined but with thorough references for those wishing to explore the various topics in greater depth.
From X Ray Binaries To Quasars Black Holes On All Mass Scales
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Author : Thomas J. Maccarone
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-01-28
From X Ray Binaries To Quasars Black Holes On All Mass Scales written by Thomas J. Maccarone and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-28 with Science categories.
This volume brings together contributions from many of the world's leading authorities on black hole accretion. The papers within represent part of a new movement to make use of the relative advantages of studying stellar mass and supermassive black holes, and to bring together the knowledge gained from the two approaches. The topics discussed include black hole observational and theoretical work-variability, spectroscopy, disk-jet connections, and multi-wavelength campaigns on black holes.
The Physics Of Accretion Onto Black Holes
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Author : Maurizio Falanga
language : en
Publisher: Springer
Release Date : 2014-10-28
The Physics Of Accretion Onto Black Holes written by Maurizio Falanga and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-28 with Science categories.
Provides a comprehensive summary on the physical models and current theory of black hole accretion, growth and mergers, in both the supermassive and stellar-mass cases. This title reviews in-depth research on accretion on all scales, from galactic binaries to intermediate mass and supermassive black holes. Possible future directions of accretion are also discussed. The following main themes are covered: a historical perspective; physical models of accretion onto black holes of all masses; black hole fundamental parameters; and accretion, jets and outflows. An overview and outlook on the topic is also presented. This volume summarizes the status of the study of astrophysical black hole research and is aimed at astrophysicists and graduate students working in this field. Originally published in Space Science Reviews, Vol 183/1-4, 2014.
The Galactic Black Hole
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Author : H Falcke
language : en
Publisher: CRC Press
Release Date : 2002-12-16
The Galactic Black Hole written by H Falcke and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-12-16 with Science categories.
The supermassive black hole in the center of our Milky Way is the nearest such object and relatively easy to observe and study. Not surprisingly therefore, it is the best studied supermassive black hole. Many astrophysical and even general relativistic effects can be investigated in great detail. The Galactic Black Hole: Lectures on General Relativity and Astrophysics provides a systematic introduction to the physics/astrophysics and mathematics of black holes at a level suitable for graduate students, postdocs, and researchers in physics, astrophysics, astronomy, and applied mathematics. The focus is mainly on the supermassive black hole in the center of our Milky Way but the results can be easily generalized taking it as an example. Leading international experts provide first-hand accounts of the observational and theoretical aspects of this black hole. Topics range from the properties of the Schwarzschild metric and the collapse of a black hole, to quantum gravity, and from the structure of the Galaxy to accretion of matter and the emission properties of the Galactic Center black hole.