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Fig. 2.
Enlarged region of the deep VST image in the g band centred on the HCG 86 group, of 8.90 × 6.49 arcmin. The two red arrows indicate the faint low-surface brightness features contributing to the IGL. The brightest group members (HCG 86A, HCG 86B, HCG 86C, and HCG 86D) are also marked in the image.
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