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Fig. 4

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Nuclear star cluster versus host galaxy stellar mass . We show X-ray detected NSCs with full colour, distinguishing between sources only detected with eROSITA (blue) and sources also detected with other instruments (orange). A fainter shade is used for non-detection in the eRASS:4 data. In addition, we show NSCs analysed by Seth et al. (2008, grey hexagons) and Baldassare et al. (2022; green triangles) for NSCs with X-ray emission outside the eRASS:4 footprint (or with significant contamination). A lack of literature data for NSC properties limits the included data set.

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