Intermediate mass black holes (IMBHs) with expected masses M• ≈ 104 M are thought to bridge the gap between stellar mass black holes (M• ≈ 3−100 M ) and supermassive black holes found at the centre of galaxies (M• > 106 M ). Until today, no IMBH has been confirmed observationally. The most promising objects to host an IMBH as their central mass are globular clusters. Here, we present high sensi...

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