Results 1 to 10 of about 175,920 (199)
European Physical Journal C: Particles and Fields, 2019 We 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.
Metin Gürses +2 more
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Spontaneously vectorized Einstein-Gauss-Bonnet black holes
Physics Letters B, 2021 We construct spontaneously vectorized black holes where a real vector field is coupled to the Gauss-Bonnet invariant. We employ three coupling functions for the vector field, and determine the respective domains of existence of the vectorized black holes.
Simon Barton +3 more
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Proceedings of the National Academy of Sciences, 2001 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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Reviews of Modern Physics, 1999 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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Dirty Black Holes and Hairy Black Holes [PDF]
Physical Review Letters, 1996 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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BLACK HOLE MAGNETOSPHERES [PDF]
The Astrophysical Journal, 2014 10 pages, 4 figures, recommended for publication in the Astrophysical ...
Antonios Nathanail, Ioannis Contopoulos
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Physical Review D, 1992 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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European Physical Journal C: Particles and Fields, 2022 We study gravitational lensing in strong-field limit by a static spherically symmetric black hole in quartic scalar field Horndeski gravity having additional hair parameter q, evading the no-hair theorem.
Jitendra Kumar +2 more
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Physical Review Letters, 2017 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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