Results 21 to 30 of about 713,825 (278)
Black hole excision for dynamic black holes [PDF]
Physical Review D, 2001 5 pages, 7 figures, published version with changes to equation (2)
Alcubierre, Miguel +4 more
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Physical Review D, 2020 In this paper, we look for the vacuum static spherically symmetric solution in the mimetic gravity scenario based on the conformal invariance principle. The trivial solution is a stealth Schwarzschild black hole with scalar hair where the mimetic field does not contribute to the background. However, a solution with two naked singularities shows up when
Mohammad Ali Gorji +3 more
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Quantum black holes. Black hole temperature without a black hole? [PDF]
Proceedings of Black Holes in General Relativity and String Theory — PoS(BHs, GR and Strings), 2009 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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Accreting fluids onto regular black holes via Hamiltonian approach
European Physical Journal C: Particles and Fields, 2017 We investigate the accretion of test fluids onto regular black holes such as Kehagias–Sfetsos black holes and regular black holes with Dagum distribution function. We analyze the accretion process when different test fluids are falling onto these regular
Abdul Jawad, M. Umair Shahzad
doaj +1 more source
Black-Hole Remnants from Black-Hole–Neutron-Star Mergers [PDF]
Physical Review Letters, 2019 Observations of gravitational waves and their electromagnetic counterparts may soon uncover the existence of coalescing compact binary systems formed by a stellar-mass black hole and a neutron star. These mergers result in a remnant black hole, possibly surrounded by an accretion disk.
Zappa, Francesco +4 more
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Black hole solutions surrounded by perfect fluid in Rastall theory
Physics Letters B, 2017 In this work, we obtain uncharged∖charged Kiselev-like black holes as a new class of black hole solutions surrounded by perfect fluid in the context of Rastall theory.
Y. Heydarzade, F. Darabi
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Physical Review D, 1996 One would expect spacetime to have a foam-like structure on the Planck scale with a very high topology. If spacetime is simply connected (which is assumed in this paper), the non-trivial homology occurs in dimension two, and spacetime can be regarded as being essentially the topological sum of $S^2\times S^2$ and $K3$ bubbles.
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Entropy of black holes with multiple horizons
Nuclear Physics B, 2018 We examine the entropy of black holes in de Sitter space and black holes surrounded by quintessence. These black holes have multiple horizons, including at least the black hole event horizon and a horizon outside it (cosmological horizon for de Sitter ...
Yun He, Meng-Sen Ma, Ren Zhao
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International Journal of Modern Physics D, 2003 Production of high-energy gravitational objects is a common feature of gravitational theories. The primordial universe is a natural setting for the creation of black holes and other nonperturbative gravitational entities. Cosmic black holes can be used to probe physical properties of the very early universe which would usually require the knowledge of
Ahn, Eun-Joo, Cavaglia, Marco
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