Astronomy & Space

Colliding neutron stars can create ultra-magnetic dead stars called magnetars

How the science connects

Neutron starMagnetarsStellar collision

AI Insight

A new study investigates the formation mechanism of magnetars, which are neutron stars with magnetic fields approximately 1,000 times stronger than typical neutron stars. While ordinary neutron stars possess magnetic fields about 100,000 times stronger than the most powerful Earth-based fields, magnetars represent roughly 1% of all neutron stars with exceptionally intense magnetism. The research, focused on neutron star mergers, suggests that magnetars may form when two neutron stars come into contact.


Understanding magnetar formation is crucial for explaining powerful astronomical phenomena including soft gamma-ray repeaters and fast radio bursts, which are among the most energetic transient events observed in the universe. This knowledge could improve our ability to predict and interpret these extreme cosmic events.


Understand the Science

All neutron stars have intense magnetic fields. The typical magnetic field of a neutron star is about 100,000 times stronger than the strongest magnetic fields we can create on Earth. But about 1% of neutron stars have even stronger magnetic fields. Known as magnetars, their magnetic fields can be 1,000 times stronger than a regular magnetic field. They are a likely cause of powerful transient events such as soft gamma-ray repeaters and fast radio bursts. A new study looks at how magnetars might form. The findings are published on the arXiv preprint server.

Source: A magnetar can be born when two neutron stars touch