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staedtler staedtler
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7 years ago
The light from the expanding shell of gas in a planetary nebula consists of
A)   bright emission lines of hydrogen, carbon, nitrogen, and other elements.
B)   thermal (blackbody) radiation with peak emission in the infrared.
C)   the light of the central white dwarf star reflected and scattered by dust and gas in the shell.
D)   thermal (blackbody) radiation with peak emission in the ultraviolet.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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7 years ago
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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