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Fig. 1

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Images of NGC 6558. Left: F606W/F814W combined colour image from the HST ACS/WFC camera for NGC 6558 (202 × 202 arcsec2). The green square represents the FoV of GSAOI (85 × 85 arcsec2). Right: J/KS combined colour image from the Gemini GSAOI camera. North is at the top and east is to the left for both images.
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