Infrared observations of the Circinus Galaxy may help reveal the shape of the dusty region fueling its active galactic nucleus and shed light on what governs dust structures in other galaxies.
A neighboring galaxy’s central black hole powers strong winds, allowing astronomers — for the first time — to spot those gales pushing out star-forming gas.
Galaxies’ central black holes are surprisingly simple creatures at heart, but they have a complicated past. New studies are starting to remove history’s obfuscating veil.
A new diagram might link the diverse visible-light characteristics of quasars to two physical properties — essentially, their accretion rate and orientation. If the analysis holds up, it could point the way toward a long-sought unification.
Over the course of ten years, a once-brilliant quasar seems to have stopped gobbling down nearby gas.