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Analysis reveals a tiny black hole repeatedly punching through a larger black hole’s disk of gas. At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups. Astronomers from MIT, Italy, the Czech Republic, and elsewhere have found that a previously q
A previously quiet black hole at the center of a distant galaxy has suddenly erupted, giving off plumes of gas every 8.5 days. These “hiccups” suggest black hole accretion disks may be more varied than previously thought, possibly containing other black holes, and even entire stars.
Astronomers at MIT measured the high-speed winds blowing off a neutron star accretion disk and created a model of its structure and velocity.
MIT astronomers mapped the “disk winds” associated with the accretion disk around Hercules X-1, a system in which a neutron star is drawing material away from a sun-like star, represented as the teal sphere. The findings may offer clues to how supermassive black holes shape entire galaxies. Credit:
The 2D map of this “disk wind” may reveal clues to galaxy formation.