What highly magnetized, rapidly spinning stellar object can sometimes be found at the center of a core-collapse supernova remnant?
Answer
A pulsar.
When a massive star undergoes core collapse (Type II supernova), the resulting compact core is often a neutron star. If this neutron star possesses significant rotation and a strong magnetic field, it is observed as a pulsar. Pulsars are characterized by their distinctive, regular pulses of radio waves emitted as their magnetic poles sweep past the observer. These pulsed signals serve as one of the primary methods astronomers use to track the initial energy release and motion associated with the explosive blast wave emanating from the stellar death.
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