Fast radio bursts may be from a neutron star orbiting a black hole
Twistiness of the radio waves suggests they traveled through a strong magnetic field
TWISTS AND TURNS The twisted waves from a distant fast radio burst suggest the burst originates from a neighborhood with a strong magnetic field. This artist’s impression represents the burst in different radio wavelengths: blue is a shorter wavelength, red is longer.
Jingchuan Yu, Beijing Planetarium/NRAO