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Fig. 8.
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X-ray-to-optical flux ratio limits for all the soft (black) and harder (red) candidates and some of the most prevalent contaminants. The limits for J06571 and J13171 were taken from Kurpas et al. (2023) and Kurpas et al. (2024). The indicated contaminants are the same as were used in Fig. 7 of Kurpas et al. (2023).
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