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Fig. A.4

image

PSF fitting test with a variable PSF on the H-band image used in this work. a) Point-source-subtracted image after use of a single, constant PSF. The circle in the lower right shows a region in which we measured the sum of the squared residual, which is 131σ2. b) Point-source-subtracted image after use of a variable PSF. The circle in the lower right shows a region in which we measured the sum of the squared residual, which is 41σ2. c) Full extent of the PSF. d) Zoom onto core of PSF near image centre. e) Zoom onto core of PSF near the lower right corner. All grey scale are logarithmic.

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