Joel Kontinen
When material falls toward a black hole, “it forms an accretion disk that emits x-rays and optical light and sometimes also a jet that is visible at radio wavelengths”.
Current theory says “if the disk contains a sufficiently strong magnetic field, then it can resist the gravitational pull of the black hole and temporarily halt the accretion process.”
Space has its odd features, and mysteries,
Source;:
Smith, Keith T. 2023, Magnetic field halts accretion, Science 1 October.