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symbo symbo
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Posts: 1970
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7 years ago
What evidence do we have that the central regions of Seyfert galaxies contain very hot gas?

(a)   Emission lines of highly ionized iron
(b)   Intense emission lines of the Lyman series of hydrogen
(c)   Strong synchrotron radiation
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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Posts: 1374
7 years ago
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symbo Author
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7 years ago
Just got PERFECT on my quiz
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Yesterday
Good timing, thanks!
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2 hours ago
You make an excellent tutor!
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