Fig. 7


Spectral index (a, c) and error maps (b, d) between 145 and 383 MHz of the cluster system eFEDS J093513.3+004746 and eFEDS J093510.7+004910 at resolutions of 15 arcsec (a, b) and 22 arcsec (c, d). The LOFAR(gray) contours are drawn at the levels of [1, 2, 4, 8, 16, 32] × 3σ where σLOFAR = 350 μJy beam−1 for the high-resolution images (a, b) and σLOFAR = 440 μJy beam−1 for the low-resolution images (c, d).

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