Combined Gemini-South and HST photometric analysis of the globular cluster NGC 6558 - The age of the metal-poor population of the Galactic bulge

Open Access

Fig. 1

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/K_S 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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