When comparing the SNR and the compact object, which is described as the more lasting physical remnant of the original stellar core?
Answer
The compact object (neutron star or black hole)
While the ejected material forms the visually defining SNR, the compact object is the more lasting physical remnant of the original stellar core, persisting long after the SNR dissipates.
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After A Supernova Event, What Is Left Behind? - Physics Frontier
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