What celestial objects are magnetars classified as being remnants of after stellar death?
Answer
Neutron stars born from the collapse of extremely massive stars
Magnetars are specifically defined as a subset of neutron stars. A neutron star forms when the core of a star, typically eight to twenty times the mass of our Sun, exhausts its fuel and collapses following a supernova explosion. For the remnant to become a magnetar, the original star must possess an unusually high degree of magnetic flux. During the extreme compression of the core—shrinking from a star many times wider than Earth down to a sphere only about 12 miles across—this existing magnetic flux is tremendously amplified, resulting in the most powerful magnetic objects known in the universe.
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