2 papers
astro-ph.IM2024
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…
astro-ph.HE2024
Photon Ring Interferometric Signatures Beyond The Universal Regime
He Jia, Eliot Quataert, Alexandru Lupsasca +1
We calculate the interferometric signatures of black hole photon rings beyond the universal regime by perturbatively including the effects of finite ring width. Our approach first…