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Fig. 9.

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Left: Fitted in-band total spectral index and its error of IC 4662 between the frequency ranges 1460 MHz and 2740 MHz. Right: Fitted in-band total spectral curvature and its error of IC 4662 between the frequency ranges 1460 MHz and 2740 MHz. The contours show the 2228 MHz total radio emission at (5, 10, 20, 40, 80, 160, 320) × 38 μJy/beam. The circular beam of 15″ is shown in the left corner.

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