Neutron star P13 shows dramatic X-ray variability linked to rotation velocity

A research team studied the long-term variability of X-rays in the neutron star NGC 7793 P13, an object thought to be driven by supercritical accretion, where an extraordinary amount of gas falls on the object and emits intense X-rays. The team discovered a relationship between X-ray luminosity and rotation speed, which could provide clues to reveal the mechanism of supercritical accretion.