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Fig. 9

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Left: GMRT 325 MHz map. Contour levels are drawn as in Fig. 1. Middle: spectral index map between 325 and 610 MHz at a resolution of 14.7″ × 8.1″. Contour levels are from the 325 MHz image and drawn as in Fig. 2. Right: optical WHT color image for VLSS J0915.7+2511. GMRT 610 MHz contours are overlaid in yellow. The beam size is 8.6″ × 5.9″. Contour levels are drawn as in Fig. 5.

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