In which forms of electromagnetic radiation do Supernova Remnants (SNRs) glow intensely?
Answer
X-rays and radio waves.
The extreme energy environment within a supernova remnant causes the heated gas to emit intense radiation across the electromagnetic spectrum. Specifically, the process generates significant emission in X-rays, which result from the superheated gas interacting violently within the expanding structure, and in radio waves. These distinct emissions are crucial observational signatures that allow astronomers to trace the dynamic evolution and energy dissipation occurring within the expanding debris field long after the initial stellar collapse.
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After A Supernova Event, What Is Left Behind? - Physics Frontier
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