Spectacularly rapid and regular X-ray eruptions observed from an active galaxy

A galaxy has been seen producing strong, regular bursts of X-rays that recur on timescales of hours. The eruptions imply that the matter flowing onto the galaxy's central black hole undergoes repeated restructuring. Evidence of possible rapid restructuring of an accretion disk.
Author(s): Bozena Czerny Author Affiliations: Spectacularly rapid and regular X-ray eruptions observed from an active galaxy https://www.nature.com/articles/s41586-019-1556-x , Miniutti et al .[sup.1] report a stunning phenomenon unlike anything observed before [...]