Black holes - techniques
Evolution of binary black holes in self gravitating discs: Dissecting the torques
... The investigation of coupled disc-binary systems has a long-standing tradition in the context of planetary dynamics (Goldreich & Tremaine 1980; Lin & Papaloizou 1986; Ward 1997; Bryden et al. 1999; Lubow et al. ...
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Following up the First Detection of Gravitational Waves with Numerical Relativity Simulations
... two black holes perturb the surrounding metric and move away from the binary at the speed of ...interferometric techniques to measures the change in the relative length di↵erence of the two ...
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Sub dominant modes of the gravitational radiation from compact binary coalescences: construction of hybrid waveforms and impact on gravitational wave searches
... the black holes (if present) or the coupling between the spins of the individual objects with each other and with the total angular momentum of the ...several techniques have been developed in order ...
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Black holes within asymptotic safety
... improvement techniques to work best close to the classi- cal ...improvement techniques reflected by the fact that for large radius r the improved black holes become in- distinguishable from ...
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Constant curvature black holes in Einstein AdS gravity: Conserved quantities
... Any asymptotically AdS spacetime can be described by a metric that has a divergence of order 2 in the radial coordinate, as one approaches the asymptotic region. In particular, holographic techniques employ a ...
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Structural aspects of asymptotically safe black holes
... these techniques have been used to explore quantum-modifications of classical Schwarzschild black holes [30–35] and black holes including angular momentum [36, ...RG-improved ...
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Modelling quantum black holes
... which has the new feature of introducing discontinuities in the wave function itself. In spite of such discontinuities, the Hamiltonian remains self-adjoint and the quan- tum theory describes well-defined unitary ...
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Weighhing the black holes in z 2 submillimeter emitting galaxies hosting active galactic nuclei
... direct black- hole mass measurements, the identification of broad Paα in a small number of nearby obscured ULIRGs provides the poten- tial to gain insight into the Eddington ratios for obscured AGNs similar to ...
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Conserved quantities for a charged rotating black holes in 5D Einstein Maxwell Chern Simons theory
... Abstract. In this work, we compute the conserved quantities of a charged rotating black hole which appears as the solution of Einstein-Maxwell action in five dimensions coupled to a Chern-Simons term for U (1) ...
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Heavily obscured quasar host galaxies at z ∼ 2 are discs, not major mergers
... driving black hole ...supermassive black holes as the quasars have inferred bolometric luminosities around the break of the quasar luminosity ...massive black hole ...
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Evidence for Three Accreting Black Holes in a Galaxy at z ~ 1 35: A Snapshot of Recently Formed Black Hole Seeds?
... three black holes, having masses 10 6 –10 7 M or smaller, growing at a significant fraction of their Eddington ...three black holes were possibly born in their current locations in ...
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The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys
... 4.3. Obscured AGN at High Redshifts, z > 3. As mentioned in Section 3, most measurements of black hole accretion at high redshift, z > 3, come from optical observations of unobscured sources. This is not ...
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Exclusion of black hole disaster scenarios at the LHC
... The subscript in (M 2 ) refers to the fact that this is evolution sce- nario number two. Eq. (12) suggests that for (d > 1) the growth rate due to thermal motion inside of the earth would be too slow to do any harm ...
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Aspects of quantum gravity in AdS3/CFT2
... then what is the complexity (as defined above) of the wavefunction | ψ(t) i = e −iHt | ψ(0) i ? Under some assumptions, they were able to prove using the geometrical approach that a lower bound for the complexity scales ...
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Massive black hole binary mergers within subparsec scale gas discs
... In this paper we studied the interaction of a supermassive binary black hole with a self-gravitating circumbinary gaseous disc. Our focus has been on subparsec scales, where binary hardening due to stellar ...
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Three dimensional massive gravity and the bigravity black hole
... This equation defines a critical line in the space of couplings where the asymptotic symmetry SL(2, ℜ ) × ℜ is enhanced to SO(2,2) and, in fact, the full conformal group. Condition (18) is not an artifact of the ...
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New observational constraints on the growth of the First Supermassive Black Holes
... Other models (e.g., Booth & Schaye 2009; Dubois et al. 2012) predict a much steeper decline in BH mass density at high redshifts and thus are consistent with our observed upper limits. As an example, in Figure 6, we ...
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Field theories with anisotropic scaling in 2D, solitons and the microscopic entropy of asymptotically Lifshitz black holes
... of black holes with Lifshitz asymptotics can then be recovered from the corresponding generalization of Cardy formula, provided the ground state is identified as a ...
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Bigravity black hole and its thermodynamics
... Bigravity has received intermittent but consistent atten- tion since it was first presented. For some recent work see [2–6]. The first question one may ask is what is the physical metric determining the geometry of ...
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Thermodynamics of dyonic black holes with Thurston horizon geometries
... In five dimensions, we consider a model described by the Einstein gravity with a source given by a scalar field and various Abelian gauge fields with dilatoniclike couplings. For this model, we are able to construct two ...
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