Left: zoom in on radio galaxy candidates RG-C, -D, and -E. LOFAR contours are in white, GMRT contours in red, both at 6″ resolution starting at five times the rms noise (90 μJy beam−1) and increasing by a factor of 1.4. Orange dashed lines mark the position of spectral index measurements. Right: spectral index as a function of distance from RG-C. Measurements are an average of all pixels in the region, taking all emission above five times the rms noise.
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