Results 11 to 20 of about 947,753 (292)
Recent progress in black hole research is illustrated by three examples. We discuss the observational challenges that were met to show that a supermassive black hole exists at the center of our galaxy. Stellar-size black holes have been studied in x-ray binaries and microquasars.
Brügmann, B., Ghez, A., Greiner, J.
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Dirty Black Holes and Hairy Black Holes [PDF]
An approach based on considerations of the non-classical energy momentum tensor outside the event horizon of a black hole provides additional physical insight into the nature of discrete quantum hair on black holes and its effect on black hole temperature. Our analysis both extends previous work based on the Euclidean action techniques, and corrects an
Krauss, Lawrence M. +2 more
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13 pages, To appear in the American Physical Society Centenary issue of Reviews of Modern Physics, March ...
Horowitz, Gary T., Teukolsky, Saul A.
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Black hole excision for dynamic black holes [PDF]
5 pages, 7 figures, published version with changes to equation (2)
Alcubierre, Miguel +4 more
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Static solutions of large-$N$ quantum dilaton gravity in $1+1$ dimensions are analyzed and found to exhibit some unusual behavior. As expected from previous work, infinite-mass solutions are found describing a black hole in equilibrium with a bath of Hawking radiation.
Birnir, B. +3 more
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BLACK HOLE MAGNETOSPHERES [PDF]
10 pages, 4 figures, recommended for publication in the Astrophysical ...
Antonios Nathanail, Ioannis Contopoulos
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Quantum black holes. Black hole temperature without a black hole? [PDF]
revtex4, 7 pages, Talk given at Workshop "Black Holes in General Relativity and String Theory", August, 24-30, 2008, Veli Losinj ...
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We show that the interaction between spin-polarized current and magnetization dynamics can be used to implement black-hole and white-hole horizons for magnons - the quanta of oscillations in the magnetization direction in magnets. We consider three different systems: easy-plane ferromagnetic metals, isotropic antiferromagnetic metals, and easy-plane ...
Roldán Molina, A. +2 more
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AbstractWe study some physical properties of black holes in Null Aether Theory (NAT) – a vector-tensor theory of gravity. We first review the black hole solutions in NAT and then derive the first law of black hole thermodynamics. The temperature of the black holes depends on both the mass and the NAT “charge” of the black holes. The extreme cases where
Gurses, Metin +2 more
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