NICER detects quasi-periodic oscillations in X-ray binary 4U 1730–22

Using the Neutron Star Interior Composition Explorer (NICER) onboard the International Space Station (ISS), an international team of astronomers has detected millihertz quasi-periodic oscillations from a low-mass X-ray binary known as 4U 1730–22. The finding was reported in a paper published March 29 in the Monthly Notices of the Royal Astronomical Society.