We show that these black holes have arbitrarily short hair, and argue for stability by showing that they can arise from dynamical collapse. We also show that a recent `no short hair' theorem does not apply to these solutions.doi:10.1142/S0218271897000340David Brown, J....
We show that in all theories in which black hole hair has been discovered, the region with non-trivial structure of the non-linear matter fields must extend beyond $3/ 2$ the horizon radius, independently of all other parameters present in the theory. We argue that this is a universal ...
In our paper on hairy Kerr black holes, we primarily discuss the impact of the hair parameters (α,l0) on its event horizon. This is because we know that the event horizon of the hairy Kerr black hole is strongly dependent on the hair parameters (α,l0). The event horizon of the ha...
... portrait-lens," Professor Barnard wrote, "besides myriads of stars, there are shown, for the first time, the vast and wonderful cloud-forms, with all their remarkable structure of lanes, holes, and black gaps, and sprays of stars. They present to us these forms in all their delicacy...
2 No-hair theorem and black hole space-time 2.1 Model 1: hairy black hole In classical general relativity, black holes carry no charge other than mass, charge and spin, which is known in black hole physics as no-hair theorem [8–19]. However, it is possible that the interaction of ...
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In the 1960s, physicist John Wheeler and colleagues proposed that black holes "have no hair," a metaphor meaning that black holes were shorn of all complicated particularities. In Wheeler's formulation, all black holes were identical except for their spin, angular momentum and mass. ...
However, intu- itively, the condition for the existence of hairy black holes is that the self-interaction of the scalar field together with the gravitational interaction should combine such that the near- horizon hair does not collapse into the black hole while the far-region hair does not ...
we conduct a thorough investigation into how the three parameters of the model influence the onset and intensity of the instability. Our analysis offers further insights into the possible emergence of this instability in spherical regular black holes and its association with the nonlinear effects of ...
We show that in all theories in which black hole hair has been discovered the region with nontrivial structure of the nonlinear matter fields must extend beyond 3 / 2 the horizon radius, independently of all other parameters present in the theory. We arg