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staedtler staedtler
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7 years ago
What is the dominant radiation that we see from the intergalactic matter in rich clusters of galaxies?
A)   Ultraviolet light from electrons spiraling in magnetic fields
B)   Infrared radiation from dust
C)   X rays from very hot gas
D)   21-cm radio radiation from cool, neutral hydrogen gas
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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7 years ago
Person Raising Both Hands in Celebration

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