Fig. B.1.
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Example of stellar contamination and subtraction using the extended PSF. Left: colour composite image of NGC2543, created using the SDSS g and r bands and the astscript-color-faint-gray algorithm described in Infante-Sainz & Akhlaghi (2024). Middle: Same field after subtraction of bright stars. Right: Scattered-light map, showing the extended halos of field stars.
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