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An analytic effective model for hairy black holes

An analytic effective model for hairy black holes

... the model by considering further examples of hairy ...the effective model in Section 2 , we consider two ap- plications in Section 3 : we apply it to Kerr BHs with synchronised hair and ... See full document

7

Effective stability against superradiance of Kerr black holes with

Effective stability against superradiance of Kerr black holes with

... Kerr black holes with synchronised hair [ 1 , 2 ] are a counter example to the no hair conjecture, in General Relativity minimally coupled to simple matter fields (with mass μ ) obeying all energy ...Kerr, ... See full document

5

Kerr black holes with scalar and Proca hair

Kerr black holes with scalar and Proca hair

... of black holes statements that stationary black holes in General Relativity are described solely by mass, angular momentum and ...at, black hole ...the hairy BH solutions that ... See full document

141

Extra dimensions at the CERN LHC via mini-black holes: Effective Kerr-Newman brane-world effects

Extra dimensions at the CERN LHC via mini-black holes: Effective Kerr-Newman brane-world effects

... Another formalism concerning large extra dimensions is the Randall-Sundrum brane-world model [2,3]. This for- malism is effectively 5-dimensional, with one warped extra dimension, and it is based on a ... See full document

12

Gravitating solitons and black holes with synchronised hair in the four dimensional O(3) sigma-model

Gravitating solitons and black holes with synchronised hair in the four dimensional O(3) sigma-model

... the hairy BHs reduce to spinning boson stars; in the limit where the scalar field trivialises, they reduce to the vacuum Kerr BH of general relativity [ 29 ], for the particular BH parameters that can support test ... See full document

25

Astrophysical imaging of Kerr black holes with scalar hair

Astrophysical imaging of Kerr black holes with scalar hair

... by an accretion torus, using the same model studied recently around Kerr BHs [29] and boson stars [30] ...to model a ground-based observation of Sgr A  , whereas the observations collected in [26] ... See full document

12

Kerr black holes with electric charge and scalar hair

Kerr black holes with electric charge and scalar hair

... It is widely accepted in the scientific community that the final outcome of the gravitational collapse of a massive star is a BH. The uniqueness theorems [3, 31] tell us that in electro- vacuum BHs are described by the ... See full document

70

Inside black holes with synchronized hair

Inside black holes with synchronized hair

... rotating black holes (BHs) with synchronized hair have been explicitly constructed, including Kerr BHs with scalar or Proca hair, and Myers–Perry BHs with scalar hair and a mass gap, showing there is a ... See full document

9

Reissner-Nordstrom black holes with non-Abelian hair

Reissner-Nordstrom black holes with non-Abelian hair

... gauge field (dubbed EeYM model), we have constructed here a qualitatively different set of electrically charged, coloured BHs. The extended YM terms can provide a tachyonic mass for the eYM magnetic perturbations ... See full document

7

Dynamical Formation of Kerr Black Holes with Synchronized Hair: An Analytic Model

Dynamical Formation of Kerr Black Holes with Synchronized Hair: An Analytic Model

... Kerr black hole (BH) triggered by a massive, complex vector ...independent), analytic model for the subset of BHs with synchronized hair that possess a quasi-Kerr horizon, applicable in the weak hair ... See full document

6

AODV Robust (AODVR): An Analytic Approach to Shield Ad-hoc Networks from Black Holes

AODV Robust (AODVR): An Analytic Approach to Shield Ad-hoc Networks from Black Holes

... policy. An approach based on dynamic training method in which the training data is updated at regular time intervals has been proposed Kurosawa ...construct an Extended Finite State Automation (EFSA) ... See full document

6

Bopp–Podolsky black holes and the no-hair theorem

Bopp–Podolsky black holes and the no-hair theorem

... consider an extension of Maxwell’s theory proposed in the early 1940s by Bopp and Podolsky [26,27], known today as Bopp–Podolsky electrodynamics, or shortly Podol- sky ... See full document

9

Aspects of superradiant scattering off Kerr black holes

Aspects of superradiant scattering off Kerr black holes

... is an example of rotational ...of an ergoregion where is possible for an infalling particle (or wave) to have negative energy [10] when measured by a static observer in asymptotic flat ... See full document

88

Formation of massive seed black holes via collisions and accretion

Formation of massive seed black holes via collisions and accretion

... rate. An infinite gas reservoir resembles a system that is constantly being fed fresh ...1. An illustration of the time evolution of the accretion rate in the different models is presented in appendix ... See full document

17

Spinning black holes in shift-symmetric Horndeski theory

Spinning black holes in shift-symmetric Horndeski theory

... spinning black holes (BHs) in shift-symmetric Horndeski theory. This is an Einstein-scalar-Gauss-Bonnet model wherein the (real) scalar field couples lin- early to the Gauss-Bonnet curvature ... See full document

32

Shadows of Einstein-dilaton-Gauss-Bonnet black holes

Shadows of Einstein-dilaton-Gauss-Bonnet black holes

... The geodesic propagation method described above is necessary to compute most of the shadow edge. However, the points x 1 and x 2 in Fig. 2 , where the edge intersects the x-axis, can be com- puted using a highly precise ... See full document

7

Shadows of Kerr Black Holes with Scalar Hair

Shadows of Kerr Black Holes with Scalar Hair

... Kerr black holes with scalar hair ...produce an increasing number of Einstein rings and multiple images of the whole celestial sphere, and (iii) ultracompact, which possess light rings, yielding ... See full document

5

Static Einstein-Maxwell Magnetic Solitons and Black Holes in an Odd Dimensional AdS Spacetime

Static Einstein-Maxwell Magnetic Solitons and Black Holes in an Odd Dimensional AdS Spacetime

... background. An early indication in this direction came from the discovery in [ 4 ] of an exact solution of the Yang–Mills (YM) equations in an AdS spacetime (note that only the dS version of the ... See full document

15

Horizon geometry for Kerr black holes with synchronized hair

Horizon geometry for Kerr black holes with synchronized hair

... in an M versus ΩH diagram, both in units of the scalar field mass ...(solid black line) and the Smarr point (pink cross —extended as the pink dotted ... See full document

9

An Effective On-the-Job Training Model -To Facilitate Strategy Execution

An Effective On-the-Job Training Model -To Facilitate Strategy Execution

... Therefore, an effective training program should also play such a role to prepare the mindset for strategy execution and foster the motivation to apply the learning (from the training which transmit the ... See full document

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