Fig. 4.
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Venn diagram showing how many sources overlap from our selection criteria. The source that is common in all the four selection method is ID 608 (Brusa et al. 2022). Fopt refers to flux in the optical r-band. The selection methods are indicated by different colours. The Venn diagram was drawn using bioinformatics and evolutionary genomics webtool at https://bioinformatics.psb.ugent.be/webtools/Venn/.
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