Multiple Choice
Most supernova remnants can be observed only at nonvisible wavelengths.Explain.
A) Supernova remnants are too cool to produce radiation at visible wavelengths.
B) Supernova remnants are too hot to produce radiation at visible wavelengths.
C) Visible wavelengths are produced by supernova remnants but they are blocked by the interstellar medium.
D) All the visible wavelengths are Doppler shifted to infrared because all the supernova remnants are moving away from us at high speeds.
Correct Answer:
Verified
Correct Answer:
Verified
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