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String analog of Reissner–Nordström black holes cannot be overcharged
(World Scientific Publishing Co Pte Lt, 2019-09-28)
In this work, we attempt to overcharge extremal and nearly extremal charged black holes in string theory, known as the Garfinkle-Horowitz-Strominger solution. We first show that extremal black holes cannot be overcharged ...
Overcharging dilaton black holes in (2+1) dimensions to extremality and beyond
(World Scientific Publishing Co Pte Lt, 2020-12)
We test whether static charged dilaton black holes in (2 + 1) dimensions can be turned into naked singularities by sending in test particles from infinity. We derive that overcharging is possible and generic for both ...
Overspinning Kerr-MOG black holes by test fields and the third law of black hole dynamics
(Springer Nature, 2020-01-11)
We evaluate the validity of the weak form of the cosmic censorship conjecture and the third law of black hole dynamics for Kerr-MOG black holes interacting with test scalar fields. Ignoring backreaction effects, we first ...
Testing cosmic censorship conjecture for extremal and near-extremal (2 + 1)-dimensional MTZ black holes
(IOP Publishing, 2020-09-03)
We test the validity of the weak cosmic censorship conjecture for the (2 + 1)-dimensional charged anti-de Sitter black hole solution, which was derived by Martinezet al(MTZ). We first construct a thought experiment by ...
Cosmic censorship, massless fermionic test fields, and absorption probabilities
(Springer, 2021-12-24)
In the conventional approach, fermionic test fields lead to a generic overspinning of black holes resulting in the formation of naked singularities. The absorption of the fermionic test fields with arbitrarily low frequencies ...
Kerr–Newman black holes can be generically overspun
(Springer Nature, 2019-04-08)
We construct thought experiments involving the perturbations of Kerr-Newman black holes by neutral test fields to evaluate the validity of the weak form of the cosmic censorship conjecture. We first show that neglecting ...
The variational method, backreactions, and the absorption probability in Wald type problems
(Springer, 2021-01-19)
We argue that the variational method in Wald type thought experiments, involves order of magnitude problems when one imposes the fact that δM is inherently a first order quantity itself. One observes that the contribution ...
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