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Why are radio maps useful?
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A radio map can give a more accurate picture of a galaxy than the optical image received by a telescope. It is built up from radio waves emitted by the galaxy. These may come from a wider area than can be seen with a telescope, or their source may be a small area at the centre of the galaxy. | | This is a radio map of part of the M82 galaxy. |
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Previous:
Back
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Book:
1001
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Section:
Space
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Chapter:
Galaxies
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