Over-spinning Kerr-Sen black holes with test fields
arXiv:1811.03452 · doi:10.1142/S0218271819500445
Abstract
In this work we investigate validity of the weak form of the cosmic censorship conjecture in the interaction of Kerr-Sen black holes with neutral test fields. Previous studies of the Klein-Gordon equation on Kerr-Sen background imply that superradiance occurs for scalar fields. We show that scalar fields can overspin a nearly extremal black hole into a naked singularity, but the modes that could overspin an extremal black hole are not absorbed due to superradiance. From Kerr analogy one can naively expect superradiance to be absent for fermionic fields. In such a case overspinning becomes generic and also applies to extremal Kerr-Sen black holes. This robust violation of cosmic censorship cannot be fixed by backreaction effects which are ignored in this work. These results are analogous to the Kerr case.
arXiv commentAccepted to appear IJMPD
References in corpus (34)
- Rotating Charged Black Hole Solution in Heterotic String Theory
- Overcharging a Black Hole and Cosmic Censorship
- Over-spinning a black hole with a test body
- Test bodies and naked singularities: is the self-force the cosmic censor?
- Gedanken Experiments to Destroy a Black Hole II: Kerr-Newman Black Holes Cannot be Over-Charged or Over-Spun
- Destroying extremal Kerr-Newman black holes with test particles
- Destroying a near-extremal Kerr-Newman black hole
- Test fields cannot destroy extremal black holes
- Dyonic Kerr-Newman black holes, complex scalar field and Cosmic Censorship
- Cosmic censorship in overcharging a Reissner-Nordström black hole via charged particle absorption
- Cosmic Censorship, Black Holes and Integer-spin Test Fields
- Destroying Kerr-Sen black holes
- Gravitational perturbation of the BTZ black hole induced by test particles and weak cosmic censorship in AdS spacetime
- Weak Cosmic Censorship Conjecture in Kerr-(Anti-)de Sitter Black Hole with Scalar Field
- Self-force as a cosmic censor
- Cosmic Censorship and Weak Gravity Conjecture in the Einstein-Maxwell-dilaton theory
- Test of the weak cosmic censorship conjecture with a charged scalar field and dyonic Kerr-Newman black holes
- Flowing along the edge: spinning up black holes in AdS spacetimes with test particles
- Overcharging higher-dimensional black holes with point particles
- Destroying a near-extremal Kerr black hole with a charged particle: Can a test magnetic field serve as a cosmic censor?
- Cosmic Censorship of Rotating Anti-de Sitter Black Hole
- Overspinning BTZ black holes with test particles and fields
- Can test fields destroy the event horizon in the Kerr-Taub-NUT spacetime?
- Weak Cosmic Censorship, Superradiance and Quantum Particle Creation
- Massive Complex Scalar Field in a Kerr-Sen Black Hole Background: Exact Solution of Wave Equation and Hawking Radiation
- Massive complex scalar field in the Kerr-Sen geometry: Exact solution of wave equation and Hawking radiation
- Electromagnetic field and cosmic censorship
- Weak cosmic censorship, dyonic Kerr-Newman black holes and Dirac fields
- Thermodynamics of Three-dimensional Black Holes via Charged Particle Absorption
- Stability of event horizons against neutrino flux: The classical picture
- Testing cosmic censorship conjecture near extremal black holes with cosmological constants
- Destroying extremal magnetized black holes
- Hawking radiation as the cosmic censor
- Is there a mode stability paradox for neutrino perturbations of Kerr black holes?
Cited by in corpus (20)
- Thermodynamics and weak cosmic censorship conjecture in Reissner-Nordstrm anti-de Sitter black holes with scalar field
- Weak Cosmic Censorship in Kerr-Sen Black Hole under Charged Scalar Field
- Kerr-Newman black holes can be generically overspun
- Strong Cosmic Censorship under Quasinormal Modes of Non-Minimally Coupled Massive Scalar Field
- String analog of Reissner-Nordström black holes cannot be overcharged
- Overspinning Kerr-MOG black holes by test fields and the third law of black hole dynamics
- Merger estimates for Kerr-Sen black holes
- Charged Particle and Strong Cosmic Censorship in Reissner-Nordström-de Sitter Black Holes
- Kerr-Sen-Taub-NUT spacetime and circular geodesics
- Quasinormal Modes of Massive Scalar Field with Nonminimal Coupling in Higher-Dimensional de Sitter Black Hole with Single Rotation
- Cosmic censorship, massless fermionic test fields, and absorption probabilities
- Overcharging dilaton black holes in 2+1 dimensions to extremality and beyond
- The variational method, backreactions, and the absorption probability in Wald type problems
- Challenging event horizons with spin (3/2) fields
- Spin-2 fields and cosmic censorship
- Absorption by stringy black holes
- Can the induced increase in the angular velocity prevent the overspinning of BTZ black holes?
- Test fields and naked singularities: is the second law the cosmic censor?
- The First Law and Weak Cosmic Censorship for de Sitter Black Holes
- Self energy in Kerr-Sen space-time incorporated to overspinning and overcharging problems