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Table C.1

Flux densities and spectral indices of the central nebula.

Frequency [MHz] Bandwidth [MHz] Outer region Sv [mJy] Middle region Sv [mJy] Inner region Sv [mJy]
944 288 31.08 19.98 9.11
835 72 32.67 20.66 9.42
908 72 31.28 19.99 9.20
980 72 30.47 19.74 9.00
1051 72 28.94 18.80 8.83
αsub-imaging αTaylor −0.51±0.26 −0.51±0.20 −0.38±0.18 −0.34±0.20 −0.28±0.10 −0.22±0.20

Notes. Flux densities were measured within three regions defined by different contour levels (cyan contours in Fig. 2). Measurements are based on the full-band and four sub-band ASKAP-EMU images.

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