Browsing Natural and Mathematical Sciences by OzU Authors "Düztaş, Koray"
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Kerr–Newman black holes can be generically overspun
Düztaş, Koray (Springer Nature, 20190408)We construct thought experiments involving the perturbations of KerrNewman black holes by neutral test fields to evaluate the validity of the weak form of the cosmic censorship conjecture. We first show that neglecting ... 
Overcharging dilaton black holes in (2+1) dimensions to extremality and beyond
Düztaş, Koray; Jamil, M. (World Scientific Publishing Co Pte Lt, 202012)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 KerrMOG black holes by test fields and the third law of black hole dynamics
Düztaş, Koray (Springer Nature, 20200111)We evaluate the validity of the weak form of the cosmic censorship conjecture and the third law of black hole dynamics for KerrMOG black holes interacting with test scalar fields. Ignoring backreaction effects, we first ... 
String analog of Reissner–Nordström black holes cannot be overcharged
Düztaş, Koray; Jamil, M. (World Scientific Publishing Co Pte Lt, 20190928)In this work, we attempt to overcharge extremal and nearly extremal charged black holes in string theory, known as the GarfinkleHorowitzStrominger solution. We first show that extremal black holes cannot be overcharged ... 
Testing cosmic censorship conjecture for extremal and nearextremal (2 + 1)dimensional MTZ black holes
Düztaş, Koray; Jamil, M.; Shaymatov, S.; Ahmedov, B. (IOP Publishing, 20200903)We test the validity of the weak cosmic censorship conjecture for the (2 + 1)dimensional charged antide Sitter black hole solution, which was derived by Martinezet al(MTZ). We first construct a thought experiment by ...
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