Astronomers have discovered a new kind of stellar object that emits radio waves every 22-minutes. The object is theorized to be an ultra-long period magnetar, a rare type of star capable producing powerful bursts of energy.
Classified as GPM J1839−10, this magnetar, located 15,000 light-years away, emits bursts of energy that last up to five minutes. Not all magnetars produce radio waves, as some exist below the ‘death line’, or a critical threshold where a star’s magnetic field becomes too weak to generate high-energy emissions. This discovery will help astronomers better understand the physics of neutron stars and the behavior of magnetic fields in extreme environments.
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It showed up in observations by the Giant Metrewave Radio Telescope (GMRT) in India, and the Very Large Array (VLA) in the USA had observations dating as far back as 1988. That was quite an incredible moment for me. I was five years old when our telescopes first recorded pulses from this object, but no one noticed it, and it stayed hidden in the data for 33 years,” said Dr Hurley-Walker—O’Doherty’s Honors Supervisor.
