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Astronomy
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Thermal and Nonthermal Radiation
Grade Level
Astronomy
AST.073 Thermal and Nonthermal Radiation
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Which observation would best support thermal radiation from interstellar dust rather than a decorative image effect?
A
A smooth infrared continuum whose peak shifts when the dust temperature changes
B
A single radio spike with almost no width
C
Two isolated hydrogen lines with no continuum between them
D
A polarized power-law continuum from radio to optical wavelengths
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