Valeri P. Frolov and Andrei Zelnikov
- Published in print:
- 2011
- Published Online:
- January 2012
- ISBN:
- 9780199692293
- eISBN:
- 9780191731860
- Item type:
- book
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199692293.001.0001
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
This book is a thorough and up‐to‐date introduction to black hole physics. It provides a modern and unified overview of all their aspects, physical, mathematical, astrophysical, classical, and ...
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This book is a thorough and up‐to‐date introduction to black hole physics. It provides a modern and unified overview of all their aspects, physical, mathematical, astrophysical, classical, and quantum. Black holes are the most intriguing objects in the Universe. For many years they have been considered just as interesting solutions of the General Relativity with a number of amusing mathematical properties. But now, after discovery of astrophysical black holes, the Einstein gravity has become a practical tool for their study. In this book we present the theory of black holes in the form which might be useful for students and young scientists. This is a self‐contained textbook. It includes pedagogically presented `standard' material on black holes and also quite new subjects such as black holes in spacetimes with large extra dimensions and a role of hidden symmetries in black hole physics.Less
This book is a thorough and up‐to‐date introduction to black hole physics. It provides a modern and unified overview of all their aspects, physical, mathematical, astrophysical, classical, and quantum. Black holes are the most intriguing objects in the Universe. For many years they have been considered just as interesting solutions of the General Relativity with a number of amusing mathematical properties. But now, after discovery of astrophysical black holes, the Einstein gravity has become a practical tool for their study. In this book we present the theory of black holes in the form which might be useful for students and young scientists. This is a self‐contained textbook. It includes pedagogically presented `standard' material on black holes and also quite new subjects such as black holes in spacetimes with large extra dimensions and a role of hidden symmetries in black hole physics.
Valeri P. Frolov and Andrei Zelnikov
- Published in print:
- 2011
- Published Online:
- January 2012
- ISBN:
- 9780199692293
- eISBN:
- 9780191731860
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199692293.003.0008
- Subject:
- Physics, Particle Physics / Astrophysics / Cosmology
The Chapter is devoted to rotating black holes, their properties, global structure, and study particle and light motion in their gravitational field. We introduce and explain notions of the horizon ...
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The Chapter is devoted to rotating black holes, their properties, global structure, and study particle and light motion in their gravitational field. We introduce and explain notions of the horizon and ergosurface in the Kerr geometry, study the extreme rotating limit of the Kerr black hole. We discuss how the rotation of the black hole affects main characteristics of the particle trajectories, in particular the radius of the innermost stable orbit and the energy of a particle at this orbit. We describe a twin paradox for inertial observers moving along circular orbits induced by the black hole rotation. We describe hidden symmetries that are responsible for the complete integrability of the geodesic equations in the Kerr spacetime. As a result of accretion of matter from the accretion disk the velocity of rotation of the black holeincreases. We discuss this effect in detail. Observable properties of the Kerr black hole, including the shadow effect, are considered. Energy extraction processes, in particular the Penrose process and superradiance, are studied. We discuss also weakly magnetized rotating black hole and a possible role of the magnetic field in the energy extraction.Less
The Chapter is devoted to rotating black holes, their properties, global structure, and study particle and light motion in their gravitational field. We introduce and explain notions of the horizon and ergosurface in the Kerr geometry, study the extreme rotating limit of the Kerr black hole. We discuss how the rotation of the black hole affects main characteristics of the particle trajectories, in particular the radius of the innermost stable orbit and the energy of a particle at this orbit. We describe a twin paradox for inertial observers moving along circular orbits induced by the black hole rotation. We describe hidden symmetries that are responsible for the complete integrability of the geodesic equations in the Kerr spacetime. As a result of accretion of matter from the accretion disk the velocity of rotation of the black holeincreases. We discuss this effect in detail. Observable properties of the Kerr black hole, including the shadow effect, are considered. Energy extraction processes, in particular the Penrose process and superradiance, are studied. We discuss also weakly magnetized rotating black hole and a possible role of the magnetic field in the energy extraction.
