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Ultra-spinning exotic compact objects supporting static massless scalar field configurations
Shahar Hod
Horizonless spacetimes describing highly compact exotic objects with reflecting (instead of absorbing) surfaces have recently attracted much attention from physicists and mathemati…
Quasi-bound state resonances of charged massive scalar fields in the near-extremal Reissner-Nordström black-hole spacetime
Shahar Hod
The quasi-bound states of charged massive scalar fields in the near-extremal charged Reissner-Nordström black-hole spacetime are studied {\it analytically}. These discrete resonant…
Onset of superradiant instabilities in rotating spacetimes of exotic compact objects
Shahar Hod
Exotic compact objects, horizonless spacetimes with reflective properties, have intriguingly been suggested by some quantum-gravity models as alternatives to classical black-hole s…
Analytic treatment of the excited instability spectra of the magnetically charged SU(2) Reissner-Nordström black holes
Shahar Hod
The magnetically charged SU(2) Reissner-Nordström black-hole solutions of the coupled nonlinear Einstein-Yang-Mills field equations are known to be characterized by infinite spectr…