Supermassive Black Holes Supermassive Black Hole Dynamics Sagittarius B Ursa Major Stellar Clusters Stellar Phenomena Dark Matter Halo Gamma-Ray Emission Messier 87 Halo
A PRL study maps a flattened inner halo whose shape matches Fermi’s glow, leaving pulsars as an equally viable rival pending higher‑resolution tests from the Cherenkov Telescope Array Observatory.