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Figure 1: Major axis (in arcsec) of the radio sources fitted with IMFIT versus distance (in degrees) from the phase centre for a representative field of T03. |
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Figure 2: Ratio D (see text for definition) of measured and extrapolated flux densities (normalized by the extrapolated flux density) of 127 sources with significant 74-MHz detections and well fitted synchrotron spectra. The straight line shows the fitted correction factor as a function of the sources' distance from the phase centre. This correction factor was subsequently applied to the data. |
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Figure 3:
Histogram of the deviations ![]() |
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Figure 4: B3 0938+399B: left: 74-MHz map, contour levels: -0.1, 0.1, ,0.2, 0.4, 0.8, 1.6, 3.2 Jy/beam; right: spectral index distribution (grey), NVSS flux densities (contours), contour levels: -1, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048 mJy/beam. |
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Figure 5: B3 1013+410: left: 74-MHz map, contour levels: -0.1, 0.1, 0.2, 0.4, 0.8, 1.6 Jy/beam; right: spectral index distribution (grey), NVSS flux densities (contours), contour levels: -1, 1, 2, 4, 8, 16, 32, 64, 128, 256 mJy/beam. |
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Figure 6: B3 1232+397B: left: 74-MHz map, contour levels: -0.1, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2 Jy/beam; right: spectral index distribution (grey), NVSS flux densities (contours), contour levels: -1, 1, 2, 4, 8, 16, 32, 64, 128 mJy/beam. |
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Figure 7: B3 1419+419: left: 74-MHz map, contour levels: -0.2, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 12.8 Jy/beam; right: spectral index distribution (grey), NVSS flux densities (contours), contour levels: -1, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048 mJy/beam. |
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