374 citations · 1k across the 28 of their papers we have counts for
29 papers
Toward a realistic test of black-hole movie correlations as a probe of extreme lensing
Barbora Bezděková, Shahar Hadar
In an optically thin setting, gravitational lensing around a black hole creates multiple delayed images of any localized source, appearing at different positions on the observer's…
Net Charge Accretion in Magnetized Kerr Black Holes
Ethan Berreby, Avner Okun, Shahar Hadar +1
We investigate the charging process of a rotating Kerr black hole of mass and angular momentum immersed in a stationary, axisymmetric, asymptotically uniform magnetic field…
Extreme-Lensing Signatures Revealed by Correlations of Simulated Black-Hole Movies
Barbora Bezděková, Shahar Hadar, George Wong +1
A black hole's gravitational pull can deflect light rays to an arbitrary degree. As a result, any source fluctuation near the black hole creates multiple lagged images on an observ…
The symplectic geometry of the black hole photon shell
Judy Shir, Shahar Hadar
The unstably bound, critical null geodesics of the Kerr spacetime form a distinguished class of orbits whose properties govern observables such as the photon ring and the high-freq…
Exploring lensing signatures through spectrotemporal correlations: implications for black hole parameter estimation
Sreehari Harikesh, Shahar Hadar, Doron Chelouche
Extreme gravitational lensing and relativistic frequency shifts, combined together, imply that radiation emitted from a black hole's vicinity can echo at different frequencies and…
The Black Hole Explorer: Motivation and Vision
Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin +65
We present the Black Hole Explorer (BHEX), a mission that will produce the sharpest images in the history of astronomy by extending submillimeter Very-Long-Baseline Interferometry…