244 citations
- Hadassah Academic CollegeIL76 papers
- Hadassah Medical CenterIL4 papers
- Ben-Gurion University of the NegevIL3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Tel Aviv UniversityIL3 papers
- Achva Academic CollegeIL2 papers
- Hebrew University of JerusalemIL2 papers
- Technion – Israel Institute of TechnologyIL2 papers
- Universidad Autónoma de MadridES2 papers
- University of Colorado DenverUS2 papers
- B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of UkraineUA1 paper
- Cavendish HospitalGB1 paper
9 papers · 2 filters
The gravitational two-body problem in the vicinity of the light ring: Insights from the black-hole-ring toy model
Shahar Hod
The physical properties of an axisymmetric black-hole-ring system are studied analytically within the framework of general relativity to second order in the dimensionless mass rati…
Stationary resonances of rapidly-rotating Kerr black holes
Shahar Hod
The Klein-Gordon equation for a massive scalar field in the background of a rapidly-rotating Kerr black hole is studied analytically. In particular, we derive a simple formula for…
Purely imaginary polar resonances of rapidly-rotating Kerr black holes
Shahar Hod
We prove the existence of a unique family of non-oscillatory (purely-imaginary) polar quasinormal resonances of rapidly-rotating Kerr black holes. These purely imaginary resonances…
Analytic toy-model for the ISCO shift
Shahar Hod
A simple black-hole-ring system is proposed as a toy model for the two-body problem in general relativity. This toy-model yields the fractional shift $ΔΩ_{\text{isco}}/Ω_{\text{isc…
Analytic treatment of the charged black-hole-mirror bomb in the highly explosive regime
Shahar Hod
A charged scalar field impinging upon a charged Reissner-Nordstrom black hole can be amplified as it scatters off the hole, a phenomenon known as superradiant scattering. This scat…
Black-hole perturbation theory: The asymptotic spectrum of the prolate spin-weighted spheroidal harmonics
Shahar Hod
Prolate spin-weighted spheroidal harmonics play a key role in black-hole perturbation theory. In particular, the highly damped quasinormal resonances of rotating Kerr black holes a…