Record-Breaking X-Ray Flash Offers Clues to Magnetar Formation
Astronomers have found compelling evidence that certain brief but intense X-ray flashes are produced when two neutron stars collide and form a magnetar—extremely dense stellar remnants with powerful magnetic fields.
The discovery centers on a record-setting event that glowed in X-rays for nearly 10 minutes, far longer than typical X-ray flashes from cosmic collisions. This extended emission provides a new observational window into these extreme mergers, which are otherwise difficult to detect.
Magnetars are a rare type of neutron star with magnetic fields billions of times stronger than Earth's. Scientists have long suspected that some magnetars form from neutron star mergers, but direct evidence has been elusive. The characteristic X-ray signature identified in this research could serve as a diagnostic tool for spotting these events.
The findings suggest that astronomers may be able to use such X-ray flashes to locate and study neutron star collisions that would otherwise go unnoticed, opening a new avenue for understanding these violent cosmic phenomena.