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Fig. 6

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H ii from Scoville et al. (2001) smoothed to 20′′ resolution, with the map of spectral indices between 1.4 GHz and 151 MHz overlayed with contours. The white, red, yellow, green, cyan and blues contours show 0.5, 0.55, 0.6, 0.7, 0.8, 0.9, respectively.

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