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Fig. 5


Zoomed images of Jupiter’s radiation belts obtained after motion corrections in the (u, v) plane and DD subtraction in a ~10′ × 10′ field, integrated over the whole bandwidth for the same time intervals as Fig. 2. The spatial scale is given in Jovian radii at Jupiter (1 RJ = 71 492 km, corresponding to ~49′′ in the sky at observation epoch). Imaging was performed with baselines 15 kλ, giving a theoretical angular resolution of 14′′ and an effective angular resolution ranging from 20′′ to 78′′ over the ten hours. Pixel size is 2′′ × 2′′. In the five successive images a) to e), the residual noise level is 14.9, 10.5, 12.3, 15.9, and 21.2 mJy/beam, and the peak S/N is respectively 31.0, 33.6, 34.1, 26.0 and 17.6. The last image is more distorted because of the low source elevation during that observing interval.

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