Are black holes totally black
A. A. Grib,Yu. V. Pavlov +1 more
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In this article, a classification of all such geodesics with energies E/m ≤ 1 for the Schwarzschild and Kerr black holes is given, and the possibility of observation of high energy particles arriving from a black hole on the Earth is discussed.Abstract:
Geodesic completeness needs that near the horizon of a black hole there exist “white hole” geodesics, coming from the region inside the horizon. We give a classification of all such geodesics with energies E/m ≤ 1 for the Schwarzschild and Kerr black holes. Collisions of particles moving along the “white hole” geodesics with those moving along “black hole” geodesics are considered. Formulas for the increase in the energy of collision in the centre of mass frame are obtained, and the possibility of observation of high energy particles arriving from a black hole on the Earth is discussed.read more
Citations
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Center of mass energy of colliding electrically neutral particles and super-Penrose process
TL;DR: In this article, the authors considered collisions of electrically neutral particles in the background of axially symmetric rotating space-times and classified possible scenarios for the super-Penrose process (SPP).
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Maximum efficiency of the collisional Penrose process
TL;DR: In this paper, the authors consider collision of two particles that move in the equatorial plane near a general stationary rotating axially symmetric extremal black hole and examine the efficiency of the collisional Penrose process.
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Collisional Penrose process of charged spinning particles
TL;DR: In this paper, the collisional Penrose process of charged spinning particles near the black hole/white hole horizon (black hole and white hole horizon) for the metric of an extreme Kerr-Newman black hole is studied.
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Super-Penrose process and rotating wormholes
TL;DR: In this paper, collision of particles in a wormhole near its throat is considered, and it is shown that if the lapse function is small enough there, the energy of debris at infinity grows unbounded, so we are faced with the super-Penrose process.
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General limitations on trajectories suitable for super-Penrose process
TL;DR: In this paper, it was shown that for any finite particle's mass, such a particle cannot be obtained as a result of the preceding collision, even if one of the initial infalling particles has the mass of the order that generalizes previous observations made in the literature for radial infall in the Kerr background.
References
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The classical theory of fields
TL;DR: The principle of relativity Relativistic mechanics Electromagnetic fields electromagnetic waves as discussed by the authors The propagation of light The field of moving charges Radiation of electromagnetic waves Particle in a gravitational field The gravitational field equation
Book
The Mathematical Theory of Black Holes
TL;DR: In a course of lectures on the underlying mathematical structures of classical gravitation theory given in 1978, Brandon Carter as discussed by the authors began with the statement ‘If I had been asked five years ago to prepare a course for recent developments in classical gravity theory, I would not have hesitated on the classical theory of black holes as a central topic of discussion. But I am grateful to them for their courtesy in assigning to me this privilege.
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Gravitational field of a spinning mass as an example of algebraically special metrics
Roy P. Kerr,Roy P. Kerr +1 more
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