Long-term monitoring of repeating FRB 20121102A reveals a significant decline in local dispersion measure and a 70% drop in rotation measure, indicating an evolving magnetized environment likely from a young supernova remnant.
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Decadal evolution of a repeating fast radio burst source
Long-term monitoring of repeating FRB 20121102A reveals a significant decline in local dispersion measure and a 70% drop in rotation measure, indicating an evolving magnetized environment likely from a young supernova remnant.