A group of researchers has pinpointed an extremely rare star with the potential to transform into a magnetar, which stands as the most magnetically powerful entity in the observable Universe.
A newly discovered star, HD 45166, holds unique significance as it is likely to evolve into a magnetar, the strongest known magnet in the Universe. This discovery has been made possible through the collaboration of researchers employing telescopes worldwide, including European Southern Observatory (ESO) facilities.
Magnetars are a type of neutron star, which are incredibly dense remnants of massive stars that have undergone a supernova explosion. Neutron stars are composed primarily of neutrons, and they pack an immense amount of mass into a relatively small volume. Magnetars, however, are characterized by having an extraordinarily strong magnetic field, far more powerful than that of typical neutron stars.
HD 45166 is categorized as a massive magnetic helium star and its unusual properties offer insights into the origins of magnetars. The star’s enigmatic nature and its magnetic characteristics have captured the attention of scientists, reshaping their understanding of this cosmic object.
The star’s powerful magnetic field, measuring 43,000 gauss, is almost 100,000 times stronger than Earth’s magnetic field. This revelation offers clues about the formation of magnetars, which are compact dead stars with immensely powerful magnetic fields. As HD 45166 eventually transforms into a magnetar, its magnetic field will intensify further. Additionally, the research indicates that HD 45166 has a smaller mass than previously thought and was formed through the merger of two smaller helium-rich stars.
This discovery fundamentally alters our comprehension of HD 45166’s nature and characteristics.
Source: Association of Universities for Research in Astronomy (AURA)