Measuring The Angular Momentum Of Supermassive Black Holes

Author : Laura Brenneman
Publisher : Springer Science & Business Media
Page : 57 pages
File Size : 41,7 Mb
Release : 2013-06-26
Category : Science
ISBN : 9781461477716

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Measuring the Angular Momentum of Supermassive Black Holes by Laura Brenneman Pdf

Measuring the spin distribution of supermassive black holes is of critical importance for understanding how these black holes and their host galaxies form and evolve over time, yet this type of study is only in its infancy. This brief describes how astronomers measure spin in supermassive black holes using X-ray spectroscopy. It also reviews the constraints that have been placed on the spin distribution in local, bright active galaxies over the past six years, and the cosmological implications of these constraints. Finally, it summarizes the open questions that remain in this exciting new field of research and points toward future discoveries soon to be made by the next generation of space-based observatories.

Author : Mario Livio,Anton M. Koekemoer
Publisher : Cambridge University Press
Page : 332 pages
File Size : 54,7 Mb
Release : 2011-02-24
Category : Science
ISBN : 9781139495677

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Black Holes by Mario Livio,Anton M. Koekemoer Pdf

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.

Author : A.J. Barger
Publisher : Springer Science & Business Media
Page : 310 pages
File Size : 54,9 Mb
Release : 2013-11-09
Category : Science
ISBN : 9781402024719

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Supermassive Black Holes in the Distant Universe by A.J. Barger Pdf

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.

Author : Tiziana Di Matteo,Andrew King,Neil J. Cornish
Publisher : Springer Nature
Page : 212 pages
File Size : 50,7 Mb
Release : 2019-10-31
Category : Science
ISBN : 9783662597996

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Black Hole Formation and Growth by Tiziana Di Matteo,Andrew King,Neil J. Cornish Pdf

The ultimate proofs that black holes exist have been obtained very recently thanks to the detection of gravitational waves from their coalescence and due to material orbiting at a distance of some gravitational radii imaged by optical interferometry or X-ray reverberation mapping. This book provides three comprehensive and up-to-date reviews covering the gravitational wave breakthrough, our understanding of accretion and feedback in supermassive black holes and the relevance of black holes for the Universe since the Big Bang. Neil J. Cornish presents gravitational wave emission from black hole mergers and the physics of detection. Andrew King reviews the physics of accretion on to supermassive black holes and their feedback on host galaxies. Tiziana Di Matteo addresses our understanding of black hole formation at cosmic dawn, the emergence of the first quasars, black hole merging and structure formation. The topics covered by the 48th Saas-Fee Course provide a broad overview of the importance of black holes in modern astrophysics.

Author : Maurizio Falanga,Tomaso Belloni,Piergiorgio Casella,Marat Gilfanov,Peter Jonker,Andrew King
Publisher : Springer
Page : 489 pages
File Size : 55,5 Mb
Release : 2014-10-28
Category : Science
ISBN : 9781493922277

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The Physics of Accretion onto Black Holes by Maurizio Falanga,Tomaso Belloni,Piergiorgio Casella,Marat Gilfanov,Peter Jonker,Andrew King Pdf

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.

Author : Fulvio Melia
Publisher : Princeton University Press
Page : 128 pages
File Size : 52,7 Mb
Release : 2020-12-08
Category : Science
ISBN : 9780691222547

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The Galactic Supermassive Black Hole by Fulvio Melia Pdf

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.

Author : Charles D. Bailyn
Publisher : Princeton University Press
Page : 224 pages
File Size : 52,9 Mb
Release : 2014-08-31
Category : Science
ISBN : 9780691148823

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What Does a Black Hole Look Like? by Charles D. Bailyn Pdf

A sophisticated introduction to how astronomers identify, observe, and understand black holes Emitting no radiation or any other kind of information, black holes mark the edge of the universe—both physically and in our scientific understanding. Yet astronomers have found clear evidence for the existence of black holes, employing the same tools and techniques used to explore other celestial objects. In this sophisticated introduction, leading astronomer Charles Bailyn goes behind the theory and physics of black holes to describe how astronomers are observing these enigmatic objects and developing a remarkably detailed picture of what they look like and how they interact with their surroundings. Accessible to undergraduates and others with some knowledge of introductory college-level physics, this book presents the techniques used to identify and measure the mass and spin of celestial black holes. These key measurements demonstrate the existence of two kinds of black holes, those with masses a few times that of a typical star, and those with masses comparable to whole galaxies—supermassive black holes. The book provides a detailed account of the nature, formation, and growth of both kinds of black holes. The book also describes the possibility of observing theoretically predicted phenomena such as gravitational waves, wormholes, and Hawking radiation. A cutting-edge introduction to a subject that was once on the border between physics and science fiction, this book shows how black holes are becoming routine objects of empirical scientific study.

Author : H Falcke,F Hehl
Publisher : CRC Press
Page : 380 pages
File Size : 40,9 Mb
Release : 2002-12-16
Category : Science
ISBN : 1420033425

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The Galactic Black Hole by H Falcke,F Hehl Pdf

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.

Author : Minas Kafatos
Publisher : CUP Archive
Page : 408 pages
File Size : 51,5 Mb
Release : 1988-02-18
Category : Science
ISBN : 0521342465

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Supermassive Black Holes by Minas Kafatos Pdf

Author : Luis C. Ho
Publisher : Cambridge University Press
Page : 502 pages
File Size : 40,7 Mb
Release : 2004-09-09
Category : Science
ISBN : 0521824494

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Coevolution of Black Holes and Galaxies: Volume 1, Carnegie Observatories Astrophysics Series by Luis C. Ho Pdf

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.

Author : Muhammad Latif,Dominik Schleicher
Publisher : World Scientific
Page : 376 pages
File Size : 45,7 Mb
Release : 2019-04-26
Category : Science
ISBN : 9789813227965

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Formation Of The First Black Holes by Muhammad Latif,Dominik Schleicher Pdf

The formation of the first supermassive black holes is one of the main open questions in our understanding of high-redshift structure formation. In this book, we aim to provide a summary of state-of-the-art modern research on this topic, exploring the formation of massive black holes from a fluid-dynamical, stellar-dynamical and chemical perspective. The book thus presents a solid theoretical foundation, a comparison with current observations and future observational perspectives with upcoming missions such as the Square Kilometre Array, the European Extremely Large Telescope, the Euclid satellite as well as possible detections via gravitational waves.

Author : Stefanos Aretakis
Publisher : Springer
Page : 131 pages
File Size : 45,5 Mb
Release : 2018-11-02
Category : Science
ISBN : 9783319951836

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Dynamics of Extremal Black Holes by Stefanos Aretakis Pdf

This Brief presents in a self-contained, non-technical and illustrative fashion the state-of-the-art results and techniques for the dynamics of extremal black holes. Extremal black holes are, roughly speaking, either maximally rotating or maximally charged. Astronomical observations suggest that near-extremal (stellar or supermassive) black holes are ubiquitous in the universe. The book presents various recently discovered characteristic phenomena (such as the horizon instability) that have enhanced our understanding of the dynamics of extremal black holes. The topics should be of interest to pure mathematicians, theoretical physicists and astronomers. This book provides common ground for communication between these scientific communities.

Author : Gustavo E. Romero,Gabriela S. Vila
Publisher : Springer
Page : 318 pages
File Size : 47,7 Mb
Release : 2013-09-14
Category : Science
ISBN : 9783642395963

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Introduction to Black Hole Astrophysics by Gustavo E. Romero,Gabriela S. Vila Pdf

This book is based on the lecture notes of a one-semester course on black hole astrophysics given by the author and is aimed at advanced undergraduate and graduate students with an interest in astrophysics. The material included goes beyond that found in classic textbooks and presents details on astrophysical manifestations of black holes. In particular, jet physics and detailed accounts of objects like microquasars, active galactic nuclei, gamma-ray bursts, and ultra-luminous X-ray sources are covered, as well as advanced topics like black holes in alternative theories of gravity. The author avoids unnecessary technicalities and to some degree the book is self-contained. The reader will find some basic general relativity tools in Chapter 1. The appendices provide some additional mathematical details that will be useful for further study, and a guide to the bibliography on the subject.

Author : Riccardo Giacconi,L. Kaper,E.P.J. van den Heuvel
Publisher : Springer Science & Business Media
Page : 408 pages
File Size : 52,8 Mb
Release : 2001-02-26
Category : Science
ISBN : 3540415815

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Black Holes in Binaries and Galactic Nuclei: Diagnostics, Demography and Formation by Riccardo Giacconi,L. Kaper,E.P.J. van den Heuvel Pdf

The observational evidence for the existence of black holes has grown significantly over recent decades. Stellar-mass black holes are detected as X-ray sources in binary systems, while supermassive black holes, with masses more than a million times the mass of the Sun, lurk in the nuclei of galaxies. These proceedings provide a useful and up-to-date overview of the observations of black holes in binaries, in the center of the Milky Way, and in the nuclei of galaxies, presented by leading expert astronomers. Special attention is given to the formation (including the recent evidence from gamma-ray bursts), physical properties, and demographics of black holes.

Author : Valeri P. Frolov,Andrei Zelnikov
Publisher : Oxford University Press
Page : 505 pages
File Size : 43,8 Mb
Release : 2011-09-22
Category : Science
ISBN : 9780199692293

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Introduction to Black Hole Physics by Valeri P. Frolov,Andrei Zelnikov Pdf

What is a black hole? How many of them are in our Universe? Can black holes be created in a laboratory or in particle colliders? Can objects similar to black holes be used for space and time travel? This book discusses these and many other questions providing the reader with the tools required to explore the Black Hole Land independently.