from Part II - Observed Physical Characteristics
Published online by Cambridge University Press: 21 July 2022
Magnetars were originally observed as high-energy emitters as either soft gamma-ray repeaters (SGRs) or anomalous x-ray pulsars (AXPs). They are very active, mainly observed as x-ray sources, apparently very young and probably part of the general population of pulsars but with much larger magnetic fields. The origin of the large magnetic fields is unclear.
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