output
19972026
most citedStationary Scalar Clouds Around Rotating Black Holes

244 citations

Showing 2017 · gr-qcShow all

8 papers · 2 filters

gr-qc2017★ 5 cited

Marginally stable resonant modes of the polytropic hydrodynamic vortex

Shahar Hod

The polytropic hydrodynamic vortex describes an effective -dimensional acoustic spacetime with an inner reflecting boundary at . This physical system, like t…

gr-qc2017★ 32 cited

No nonminimally coupled massless scalar hair for spherically symmetric neutral reflecting stars

Shahar Hod

It has recently been proved that horizonless compact stars with reflecting boundary conditions {\it cannot} support spatially regular matter configurations made of minimally couple…

gr-qc2017★ 72 cited

Extremal Kerr-Newman black holes with extremely short charged scalar hair

Shahar Hod

The recently proved `no short hair' theorem asserts that, if a spherically-symmetric static black hole has hair, then this hair (the external fields) must extend beyond the null ci…

gr-qc2017★ 46 cited

A no-short scalar hair theorem for rotating Kerr black holes

Shahar Hod

If a black hole has hair, how short can this hair be? A partial answer to this intriguing question was recently provided by the 'no-short hair' theorem which asserts that the exter…

gr-qc2017★ 29 cited

A proof of the weak gravity conjecture

Shahar Hod

The weak gravity conjecture suggests that, in a self-consistent theory of quantum gravity, the strength of gravity is bounded from above by the strengths of the various gauge force…

gr-qc2017★ 39 cited

Charged massive scalar field configurations supported by a spherically symmetric charged reflecting shell

Shahar Hod

The physical properties of bound-state charged massive scalar field configurations linearly coupled to a spherically symmetric charged reflecting shell are studied {\it analyticall…